脱式计算39×1.25+ 0.8的简算
脱式计算39×1.25+ 0.8的简算
39×1.25+ 0.8
=(40-1)x1.25+0.8
=40x1.25-1x1.25+0.8
=50-1.25+0.8
=50-1-0.25+0.8
=49+0.8-0.25
=49+0.55
=49.55
谢谢,请采纳
4.5除1.25简算脱式计算
4.5除1.25?还是4.5除以1.25?
提示:被除数、除数都扩大8倍
4.5除以1.25的话:36÷10=3.6
24×1.25×0.25脱式计算能简算最好简算
24×1.25×0.25
=3×8×1.25×0.25
=8×1.25×(3×0.25)
=10×0.75
=7.5
脱式计算:1.25*7.2*0.8
1.25*7.2*0.8
=1.25x0.8x7.2
=1x7.2
=7.2
祝你学习进步,有不明白的可以追问!谢谢!
8.4÷1.25÷0.8的脱式计算
8.4÷1.25÷0.8的脱式计算
=8.4/(1.25x0.8)
=8.4/1
=8.4
1.25乘92加1又四分之1乘7加1.25,脱式计算,能简算的要简算
1.25乘92加1又四分之1乘7加1.25,
=1.25乘92加1.25乘7加1.25,
=1.25乘(92+7+1)
=1.25乘100
=125
1.25+(17.37-8.75)简便计算
1.25+(17.37-8.75)
=1.25+17.37-10+1.25
=7.37+2.5
=9.87
1.35÷(1.25x0.8)脱式计算
1.35÷(1.25x0.8)脱式计算
1.35÷(1.25x0.8)
=1.35÷1
=1.35
希望能帮到你
0.8-1.25-1.75用脱式计算=?
0.8 - 1.25 - 1.75
= 0.8 - (1.25+1.75)
= 0.8 - 3
= - 2.2
1.25*(8+0.8)+4.3脱式计算
1.25*(8+0.8)+4.3
=1.25*8+1.25*0.8+4.3
=10+1+4.3
=15.3
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