脱式计算. 87+(510-150×3) 3008-46×25+298 48×(103+97)

2025-04-13 23:10:37
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回答1:

(1)87+(510-150×3) =87+(510-450) =87+60 =147; (2)3008-46×25+298 =3008-1150+298 =1858+298 =2156; (3)48×(103+97) =48×200 =9600.