Difference using an unmarked number line

Find the difference between two numbers by counting on from the smaller number to the larger number. Children must add the fewest numbers possible, so are encouraged to develop more efficient mental methods. The addition is also shown as jumps on a number line.Levels include counting up to 10, 20, 50 or 100, finding the difference between 2-digit numbers, 3-digit numbers and decimals.
File Size9.46 MB
Operating System iOS
System RequirementsCompatible with iPad. iTunes account required.


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