amazingace500 amazingace500

04-05-2020
Mathematics

contestada

Elena's diagram for 372 has 7 tens. The one for 372 : 3 has only 6 tens. Why? Where
did the extra ones blocks (small squares) come from?

Respuesta :

sqdancefan sqdancefan

05-05-2020

Answer:

one ten was traded for ten ones

Step-by-step explanation:

372 cannot be divided by 3 easily. However, 360 +12 can be divided by 3 easily, so it makes sense to trade one of the seven tens for ten ones. That will leave 6 tens, but give twelve ones.

370 +2 = 360 +12 . . . . where the "+" numbers are the numbers of ones

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