Комбинированные формулы на абакусе

Комбинированные формулы на абакусе
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Комбо двузначные числа на абакусе

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Rounding Numbers to the Nearest 10

Addition and Subtraction - Math

Read the directions and round each number to the nearest 10. Check the digit in the ONES Place if it is less than 4 round the number to the least ten, but if the digit is  5 or more, round the number to the greater 10. 

Sumas con llevadas fáciles

Addition and Subtraction - Math

Realizar las siguientes sumas con llevadas.

Sumas con llevadas

Addition and Subtraction - Math

Resolver las siguientes sumas con llevadas.

DIS Maths Week 6 lesson 4

Addition and Subtraction - Math

decimals add and subtract