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dusya [7]
3 years ago
5

Regrouping 21 ones are regrouped as 1 ten and 2 ones

Mathematics
2 answers:
ELEN [110]3 years ago
8 0
Regrouping 21 ones are regrouped as 2 tens and 1 ones.

10
10
01
---
21
gulaghasi [49]3 years ago
8 0
2 tens equal 20 and 1 = 21
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