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7.5×3.5 0.75×35=?用简便计算

7.5×3.5 +0.75×35 =7.5x(3.5+3.5) =7.5x7 =52.5

这个题目应该是你写错了,第一个的3.5,应该在出题的时候是0.35,这样才是符合简便计算的。 75*3.5+0.75+7.5*6.4 =75*(3.5+0.01+0.64) =75*4.15 =311.25

5.6x7.5—3.5x5.6 =5.6x(7.5-3.5) =5.6x4 =22.4

=2.5✘0.75+7.5✘0.75=0.75✘(2.5+7.5)=0.75✘10=7.5

9.9×1.3-7.5=5.37 回答完毕~ 有疑问请追问~无疑问请点击【采纳】~ 祝学习进步\(^o^)/~~~

﹙10+0.1﹚×7.5-0.75=75+0.75-0.75=75

0.75×43+0.75×56+0.75×1=0.75×(43+56+1)=0.75×100=75

7.5╳0.43+0.75╳4.3用简便方法计算 =0.43×(7.5+7.5) =0.43×15 =6.45

7.5×2+1.25÷0.5 =15-2.5 =12.5 98×4.7 =(100-2)×4.7 =470-9.4 =460.6 9.2÷0.25+0.75 =9.2×4+0.75 =36.8+0.75 =37.55

0.75×10-7.5+0.75×0.1

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