Question

98+998
$98 \times 5$
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Answer 1

Ответ:

$98 + 998 = 1096$

$98 \times 5 = (90 + 8) \times 5 = 450 + 40 = 490$

Answer 2

1) 98 + 998 = 1096

2) 98 * 5 = ( 100 - 2 ) * 5 = 100 * 5 - 2 * 5 = 500 - 2 * 5 = 500 - 10 = 490