Question

Efetue as multiplicações. A)+34. +25=
B)-12. -53=

C)+74. 0=

D)+4.-32.+23=

Answer 1

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$a) \: \: + 34 \times + 25 \\ 34 \times 25 \\ 850$

$b) \: \: - 12 \times - 53 \\ 12 \times 53 \\ 636$

$c) \: \: + 74 \times 0 \\ 74 \times 0 \\ 0$

$d) \: \: + 4 \times - 32 \times + 23 \\ 4 \times ( - 32) \times 23 \\ - (4 \times 32 \times 23) \\ - (128 \times 23) \\ - 2944$

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