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Add and subtract sibling numbers
Add and sub sibling numbers in the range from 1 to 100
8802 Add and subtract sibling numbers
Add and subtract spliting one digit number
Addition and subtraction by splitting one digit number
4896 Add and subtract spliting one digit number
Add and subtract terms with incrementing summand
In a series of addition or subtraction terms, one number changes stepwise.
5355 Add and subtract terms with incrementing summand
Add and subtract times table product
Addition and subtraction of times table products
7300 Add and subtract times table product
Add and subtract times table product with same factor
Addition and subtraction of times table products for a single number one to ten
5139 Add and subtract times table product with same factor
Add multiples of powers of ten
Multiples of powers of ten added to natural numbers.
8201 Add multiples of powers of ten
Add numbers
Numbers with or without decimal places have to be added.
Add two numbers with specific number of places
Addition of two numbers with controlled number of digits for each number.
6327 Add two numbers with specific number of places
Addition of powers of ten, fill blanks
What multiple of a power of ten has been added?
8703 Addition of powers of ten, fill blanks
Addition or subtraction, insert correct symbol
In a series of addition or subtraction problems, the plus or minus symbol is missing.
4599 Addition or subtraction, insert correct symbol
Addition up to ten in graphical form
Plus problems up to ten are to be described using marbles.
2763 Addition up to ten in graphical form
Columnar addition
Columnar addition of multiple summands.
Columnar addition of decimal fractions
Columnar addition of multiple decimal fractions.
5086 Columnar addition of decimal fractions
Columnar addition with blanks
Blanks in columnar addition to be filled in correctly.
1442 Columnar addition with blanks
Columnar subtraction
Columnar addition of multiple subtrahends.
9777 Columnar subtraction
Compare two fractions and tell which one is larger
Insert the correct relational symbol between two fractions
1433 Compare two fractions and tell which one is larger
Complete the table with scaled lengths
In a table with scale, scaled length and real length, missing values must be added
3223 Complete the table with scaled lengths
Continue number sequence add subtract
Find the next numbers in a series
6913 Continue number sequence add subtract
Convert fractions to like fractions
Convert multiple fractions to like quantities
6760 Convert fractions to like fractions
Convert the value of a scaled length
Conversion of lengths at a given scale in both directions
2050 Convert the value of a scaled length
Count up to ten
A series of different symbols is shown. Count each of the symbols.
Decimal fraction divide by power of 10
A decimal fraction has to be divided by a power of ten.
8600 Decimal fraction divide by power of 10
Decimal fraction divide by whole number
A decimal fraction has to be divided by a whole number.
1454 Decimal fraction divide by whole number
Decimal fraction division
A decimal fraction has to be divided by another decimal fraction.
8100 Decimal fraction division
Decimal fraction multiply by power of 10
A decimal fraction has to be multiplied by a power of ten.
8565 Decimal fraction multiply by power of 10
Decimal fraction multiply by whole number
A decimal fraction has to be multiplied by a whole number.
9400 Decimal fraction multiply by whole number
Decimal fraction to fraction bar notation
Decimals have to be converted to fraction bar notation.
1213 Decimal fraction to fraction bar notation
Decimal fractions multiplication
Two decimals have to be multiplied.
1824 Decimal fractions multiplication
Determine gcd and lcm by comparing multiples & divisors
For two given numbers, the gcd and lcm are determined by comparing lists of multiples or divisors
4978 Determine gcd and lcm by comparing multiples & divisors
Direct proportionality - complete table
Apply the rule of three for a direct proportionality relationship and fill in missing values in a table.
6246 Direct proportionality - complete table
Distributive law - use to evaluate
Evaluate terms by multiplying out using distributive law
4870 Distributive law - use to evaluate
Divide a fraction by a whole number
A fraction has to be divided by a whole number.
5220 Divide a fraction by a whole number
Divide two fractions
Division of two fractions.
5923 Divide two fractions
Divisibility rules to be specified and applied
The rules on divisibility have to be specified and applied.
8903 Divisibility rules to be specified and applied
Division by multiples of power of ten
Divison by a power of ten or a multiple thereof.
6894 Division by multiples of power of ten
Division of fractions: Fill in the blanks
In a division term of two fractions, blanks have to be filled in.
5949 Division of fractions: Fill in the blanks
Division series 1x1 with factor 10
Division problem series with divisor and dividend alternating with factor ten.
8345 Division series 1x1 with factor 10
Division times table 1-10
Division problems from the multiplication tables
1717 Division times table 1-10
Division, perform by splitting dividend
Divide by splitting the dividend.
6543 Division, perform by splitting dividend
Double a given number
Double a number with or without decimal places.
4627 Double a given number
Draw dice pips for correct sum
First steps to subtraction skills: Add dice pips so that sum of multiple dice is correct.
5491 Draw dice pips for correct sum
Evaluate algebraic expression
A simple algebraic expression is to be evaluated, observing computational rules
7301 Evaluate algebraic expression
Expand fractions by given number
Fractions are to be expanded by a given number
1594 Expand fractions by given number
Find number in the middle
For two given numbers, find the number in the middle, the midpoint.
3302 Find number in the middle
Fraction mult factor has to be filled in
Two fractions are multiplied, one fraction and result given.
7056 Fraction mult factor has to be filled in
Fraction to decimal conversion
A given fraction has to be converted to decimal notation.
9045 Fraction to decimal conversion
Fraction to percentage
A fraction is given, write as a percentage.
7407 Fraction to percentage
Fractions addition subtraction
Adding and subtracting fractions
6408 Fractions addition subtraction
Fractions addition subtraction fill in the blanks
In a sum term of fractions, blanks have to be filled in correctly
4288 Fractions addition subtraction fill in the blanks
Fractions multiplication by whole numbers fill blanks
What whole number has be fraction been multiplied with?
2501 Fractions multiplication by whole numbers fill blanks
Fractions of units of measurement
Identify fractions of area, price, weight, length given in different forms: 1/8, 20%, 0.3.
3400 Fractions of units of measurement
Frames & Arrows w/ elementary arithmetic - add & sub
Simple frames and arrows chain task with one elementary arithmetic operation, results are to be filled in blank spaces.
8518 Frames & Arrows w/ elementary arithmetic - add & sub
Frames & Arrows w/ elementary arithmetic - varying ops
In a frames and arrows calculation chain task, the results are to be filled in the blank spaces.
2247 Frames & Arrows w/ elementary arithmetic - varying ops
GCD computation with the Euclidean Algorithm
Compute the GCD step by step with the Euclidian Algorithm.
2001 GCD computation with the Euclidean Algorithm
Halve numbers
Divide numbers by two, whole numbers or with decimal places.
Insert relational operator
Insert the correct relational symbol between two decimals.
7760 Insert relational operator
Insert relational operator - simple
Insert the correct relational symbol between two numbers.
7029 Insert relational operator - simple
Insert relational operator for subtraction terms
The correct relational operator has to be inserted for subtraction terms.
5303 Insert relational operator for subtraction terms
Insert relational operator for sum terms
The correct relational operator has to be inserted for addition terms.
5234 Insert relational operator for sum terms
Insert the arithmetic operator
In an equation with two operands, insert the correct arithmetic symbol.
4680 Insert the arithmetic operator
Insert two arithmetic operators
In an equation with three operands, insert two operators.
6624 Insert two arithmetic operators
Inverse proportionality - complete table
Apply the rule of three for an inverse proportionality relationship and fill in missing values in a table.
6517 Inverse proportionality - complete table
lcm derived via prime factorization
The lcm is to be derived for two given numbers.
3333 lcm derived via prime factorization
Linear equation system - Gaussian algorithm
A system of linear equations is to be solved with the Gaussian elimination method.
3339 Linear equation system - Gaussian algorithm
Long division of two whole numbers
Division of two whole numbers, with remainder, written long division method illustrated.
4913 Long division of two whole numbers
Long division with whole numbers, blanks to be filled
Division of two whole numbers, with remainder, written long division with blanks to be filled in.
6165 Long division with whole numbers, blanks to be filled
Long multiplication to be performed for two factors
Two factors have to be multiplied using the long multiplication written form.
3232 Long multiplication to be performed for two factors
Magic triangle with sums to be filled in correctly
In a magic triangle, six numbers have to be filled in correctly.
1655 Magic triangle with sums to be filled in correctly
Matrix of addition and subtraction problems
Table of addition and subtraction problems
6571 Matrix of addition and subtraction problems
Mean and median to be determined
For a series of numbers, the mean or median is to be found.
3103 Mean and median to be determined
Median and mean - decide which number is which
For two given numbers for a number series, decide which is the median and which is the mean.
9556 Median and mean - decide which number is which
Median or mean value - Which one is it?
Decide whether a number is the median or mean of a given series of whole numbers.
8194 Median or mean value - Which one is it?
Missing elements in unlike fractions
In unlike fractions of the same value, numerators or denominators have to be filled in.
6652 Missing elements in unlike fractions
Multiples of a number list first n
For a given number, list the first n multiples.
9444 Multiples of a number list first n
Multiples of a number up to a limit
For a given number, the multiples up to a given limit have to be listed.
5221 Multiples of a number up to a limit
Multiplication by power of ten
Multiplication of a whole numbers with powers of ten or multiples of powers of ten
3003 Multiplication by power of ten
Multiplication of negative and positive numbers
Multiplication of two negative numbers, training the rules for the product's sign.
9229 Multiplication of negative and positive numbers
Multiplication of two natural numbers
Multiplication problems with defined number range
8228 Multiplication of two natural numbers
Multiplication problem series with powers of ten
In a series of multiplication terms with same product, the number of places move from first to second factor.
8721 Multiplication problem series with powers of ten
Multiplication tables with mistakes
In a number of tasks from the multiplication tables, mistakes have to be found.
9287 Multiplication tables with mistakes
Multiply fractions
Multiply two fractions.
Multiply fractions by whole numbers
A fraction has to multiplied by a whole number.
7650 Multiply fractions by whole numbers
Negative decimals add and subtract
Negative decimal numbers are to be added and subtracted
2601 Negative decimals add and subtract
Negative whole numbers add and subtract
Negative whole numbers are to be added and subtracted
3402 Negative whole numbers add and subtract
Negative whole numbers add and subtract choose result
For an addition or subtraction problem with negative numbers, the correct result must be chosen.
8902 Negative whole numbers add and subtract choose result
Number line illustrating times table problem
On a numberline, 1 to 10 jumps each 1-10 units in length are depicted. What problem is shown and where do we land?
6193 Number line illustrating times table problem
Number wall sums of decimal numbers
In a number wall, blanks have to be filled in with decimal numbers.
5950 Number wall sums of decimal numbers
Number wall sums of whole numbers
In the number wall missing sums have to be added.
8704 Number wall sums of whole numbers
Number wall times table products
In a number wall, products from the times tables 1-10 are to be filled in.
2762 Number wall times table products
Number wall with physical quantities
Fill in the blank boxes in the pyramid of units of measurement.
5598 Number wall with physical quantities
Order fractions from least to greatest
A series of fractions has to be put in the correct order.
5679 Order fractions from least to greatest
Order numbers according to size
Sort positive and negative decimal numbers and whole numbers by size
8107 Order numbers according to size
Percent base value calculation from base and rate
Percent rate and percentage are given, calculate the rate and fill in the empty box.
6679 Percent base value calculation from base and rate
Percent calculate missing value
In a percentage term, one of the base, percentage, or percent rate has to be filled in.
4915 Percent calculate missing value
Percent rate calculation from base and percentage
Base value and percentage are given, calculate the rate and fill in the empty box.
1902 Percent rate calculation from base and percentage
Percentage calculation
Calculate percentage from base value and rate.
6219 Percentage calculation
Percentage to fraction
A percentage has to be written in fraction bar notation.
6895 Percentage to fraction
Reduce fractions
A fraction has to be reduced to lowest terms.
Reduce fractions by
Fractions are to be reduced by a given number
Relational operator insert digit for true statement
Add a digit in a relational statement to make it true.
6274 Relational operator insert digit for true statement
Relational symbol with times table terms and number
Compare Times table multiplication terms to numbers, decide what is the correct relational symbol.
3700 Relational symbol with times table terms and number
Round whole numbers and decimals
Round whole numbers and decimal fractions
4914 Round whole numbers and decimals
Rule of three word problem
Word problems that can be solved by applying the rule of three.
3894 Rule of three word problem
Rule of three word problem, easy variant
Easy word problems that can be solved by applying the rule of three. No initial division necessary, first factor is one.
8130 Rule of three word problem, easy variant
Scale factor to be determined
The scale used for an illustration shall be determined.
8002 Scale factor to be determined
Scaled rectangle: determine original dimensions
A given rectangle must be measured, length and width converted and the area determined.
9001 Scaled rectangle: determine original dimensions
Semi-long multiplication by decomposition
Preparation for long multiplication: Multiply by decomposing first factor
9523 Semi-long multiplication by decomposition
Step up to place value
A natural number is incremented to the next multiple of a power of ten.
9443 Step up to place value
Subtract mupltiples of powers of ten
Multiples of powers of ten subtracted from natural numbers.
6761 Subtract mupltiples of powers of ten
Subtract numbers in range
Multiple numbers with or without decimal places have to be subtracted.
3115 Subtract numbers in range
Subtraction by filling up place values
Calculate difference by stepping up each place value.
4950 Subtraction by filling up place values
Subtraction power of ten fill blanks
What multiple of a power of ten has been subtracted?
8601 Subtraction power of ten fill blanks
Subtraction term graphical representation
A series of marbles represents a subtraction term - empty spaces to be filled in term.
8490 Subtraction term graphical representation
Subtraction two numbers with specific no of places
Subtraction of two numbers with controlled number of digits for each number.
9801 Subtraction two numbers with specific no of places
Table of multiplication problems
Matrix of multiplication problems with whole numbers
5545 Table of multiplication problems
Times table fill in blanks
Simple times table problems where the product and a factor are given.
2776 Times table fill in blanks
Times table with factor ten
Multiplication problem series introducing factor of ten
6733 Times table with factor ten
Times table:Multiplication problems in range one to ten
Multiplication problems from the 1-10 times tables.
7354 Times table:Multiplication problems in range one to ten
Units of measurement add and subtract
Add and subtract units of measurement
7543 Units of measurement add and subtract
