Question

1) найдите сумму
3×100+5×10+2
4×1000+6×100+8×10+9​

Answer 1

Ответ:

$3 \times 100 + 5 \times 10 + 2$

$3 \times 100 = 300$

$5 \times 10 = 50$

$300 + 50 = 350$

$350 + 2 = 352$

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$4 \times 1000 + 6 \times 100 + 8 \times 10 + 9$

$4 \times 1000 = 4000$

$6 \times 100 = 600$

$8 \times 10 = 80$

$4000 + 600 = 4600$

$4600 + 80 = 4680$

$4680 + 9 = 4689$