Details for problem "Add and subtract sibling numbers"

Quickname: 8802

Suitable for K-12 grades: Grade 1 Grade 2 Grade 3

Elementary School, Primary School.

Summary

Add and sub sibling numbers in the range from 1 to 100

Examples

Description

Sibling numbers are numbers whose sum is ten.

This task is used to train sibling numbers that add up to ten.

For this purpose, problems are presented where a two-digit number and a one-digit number must be added or subtracted. With addition, the next tenner is reached, with subtraction the first number is itself a tenner.

It is selectable whether all numbers (1-9) or only a certain number is to be trained. In addition, a trick question can be scattered where the above conditions do not apply.

Topics: Arithmetic Number spaces Whole Numbers

Tags: Addition Subtraction

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