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(−640 ÷ −4) ∙ (12 ÷ 2) =


c. (+6) – (+5) + (+4) – (-2) – (+1) =


Respuesta :

Explicación paso a paso:

[tex]( - 640 \div - 4).(12 \div 2) =( 160).(6) \\ = 960 \\ \\ \\ \\ ( + ) - ( + 5) + ( + 4) - ( - 2) - ( + 1) = +6 - 5 + 4 + 2 - 1 = 1 + 4 + 2 - 1 \\ = 5 + 2 - 1 \\ = 7 - 1 \\ = 6[/tex]