Rounding numbers to the nearest 1, 10 or 100 can help with lots of mental ... Count on from 38 to 40 and keep that 2 in your head. Now count on from 40 to 60, which is 20. Finally count from ...
Rounding numbers to the nearest 1, 10 or 100 can help with lots of mental ... Count on from 38 to 40 and keep that 2 in your head. Now count on from 40 to 60, which is 20. Finally count from ...
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