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25乘5加74乘5加5简便运算是多少

25×5+74×5+5 =5×(25+74+1) =5×100 =500 回答完毕~ 有疑问请追问,我一定尽快回复你~ 无疑问请点击【采纳】,同时预祝学习进步~\(^o^)/~ 我不是学霸,叫我赌神~\(^o^)/~~\(^o^)/~~\(^o^)/~~\(^o^)/~

126*5+5*74 =(126+74)*5 =200*5 =1000

解:25×28 =25×(4×7) =25×4×7 =(25×4)×7 =100×7 =700 解:75×4 =3×25×4 =3×(25×4) =3×100 =300

原式 =4.25x0.7+42.5x0.93 =4.25x0.7+4.25x9.3 =4.25x(0.7+9.3) =4.25x10 =42.5 供参考。

解:原式=7/4x1/6+4/7x5/6+4/7 =7/24+4/7x(5/6+1) =7/24+4/7x11/6 =7/24+22/21 =56/168+1+8/168 =1+64/168 =1又8/21 分析:考察拆分法和结合律的运用。

1:9/25*17/26+13/25*9/26 =9/25*17/26+9/25*13/26 =9/25*(17/26+13/26) =9/25*30/26←上下约分 =27/65 2:5/3*1/12+1/3*1/4 =5/3*1/12+1/12 =1/12*(5/3+1) =1/12*8/3←上下约分 =2/9 3:7/11*6/8+2/12*6/11 =6/11*7/8+5/12*6/11 =6/11*(7/8+5/1...

2.74*9.5+5*0.274 =2.74*9.5+2.74*0.5 =2.74*(9.5+0.5) =2.74*10 =27.4

题干不详

37乘1/8加1.25乘2.7加5/4乘3.6,简便运算,等于多少? 37乘1/8加1.25乘2.7加5/4乘3.6 =1.25*(2.7+3.6)+37*1/8 =7.875+4.625 =12.5

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