(4十8)x1.25x0.25的简便运算

2024-12-01 04:24:53
推荐回答(2个)
回答1:

(4+8)*1.25*0.25
=4*0.25*1.25+2*1.25*4*0.25
=1.25+2.5
=3.75

回答2:

=(4×0.25+8×0.25)×1.25
=3×1.25