( +40) + ( -10) =
( +81) + ( +11) =
(-56) + (+20) =
(+38) + (-21) =
(-41) + (-39) =
( +81) + ( +11) =
(-56) + (+20) =
(+38) + (-21) =
(-41) + (-39) =
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Ответ:
Пошаговое объяснение:
( +40) + ( -10) = 40 - 10 = 30
( +81) + ( +11) = 81 + 11 = 92
(-56) + (+20) = - 56 + 20 = - 36
(+38) + (-21) = 38 - 21 = 17
(-41) + (-39) = - 41 - 39 = - 80