Question

$5 \times1 {0}^3 + 3 \times 1 {0}^{2} + 2 \times 10 + 7$
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Answer 1

Răspuns:

5×1000+3×100+20+7

5000+300+20+7

5327

Answer 2

Răspuns:

5·10³+3·10²+2·10+7=10·(5·10²+3·10+2·1)+7=10·(5·100+30+2)+7=

10·532+7=5320+7=5327

sau

5·1000+3·100+2·10+7=5000+300+20+7=5327