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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 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
Combine like terms
Combine like terms in a sum term
Combine like terms with negated brackets
Combine like terms in a sum term and expand terms in negated brackets
6625 Combine like terms with negated brackets
Continue number sequence add subtract
Find the next numbers in a series
6913 Continue number sequence add subtract
Distributive law - use to evaluate
Evaluate terms by multiplying out using distributive law
4870 Distributive law - use to evaluate
Distributive law: Match complex and expanded terms
Find pairs of complex terms and their corresponding expanded form.
4492 Distributive law: Match complex and expanded terms
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
Examine the elements of binomic formulas
Elements of a binomic formula and their expanded form are grouped in a table. Fill the empty spaces.
7596 Examine the elements of binomic formulas
Expand and simplify term, combine like terms
Expand a term with sums and products with numbers and variables. Combine like terms to simplify the result.
3291 Expand and simplify term, combine like terms
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
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
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
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
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?
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
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
Roman numerals, convert from and to decimal system
Numbers have to be converted from the decimal system to roman numerals and vice versa.
9046 Roman numerals, convert from and to decimal system
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
Subtraction power of ten fill blanks
What multiple of a power of ten has been subtracted?
8601 Subtraction power of ten fill blanks
