括号三点9-1点二七括号乘五点七简便计算
括号三点9-1点二七括号乘五点七简便计算
(3.9-1.27)*5.7
=2.63*(6-0.3)
=15.78-0.789
=14.991
18.15减括号三点5-1点七五括号用简便方法计算
18.15-(3.5-1.75)
=18.15+1.75-3.5
=19.9-3.5
=16.4
30-括号三点8+0点七五怎样简便计算
30-括号三点8+0点七五怎样简便计算
30-(3.8+0.75)
=30-4.55
=25.45
没有合适的简便方法
括号一点9-1点9×0点九除以括号三点8-2点八简便计算
(1.9-1.9*0.9)÷(3.8-2.8)
=1.9*(1-0.9)÷1
=1.9*0.1
=0.19
哈哈哈60-括号三点7+0点七五+8点六括号怎样简便计算
60-括号三点7+0点七五+8点六括号怎样简便计算
60-(3.7+0.75+8.6)
=60-13.05
=36.95
直接计算
二百减括号三点零五加三七点一括号乘十八简便计算
200-(3.05+37.1)*18
=200-18*40.15
=200-722.7
=-522.7
1.25乘括号八点1+0点七用简便用简便计算怎么算
1.25×(8.1+0.7)
=1.25×8.8
=1.25×8×1.1
=10×1.1
=11。
一三点七减二六点四除括号二点六加一点四括号简便计算
13.7-26.4÷(2.6+1.4)
=13.7-26.4÷4
=13.7-6.6
=7.1
括号4.2×0点56回括除以括号0.42×0点七回括的简便计算
括号4.2×0点56回括除以括号0.42×0点七回括的简便计算
括号4.2×0点56回括除以括号0.42×0点七
=(4.2÷0.42)*(0.56÷0.7)
=10*0.8
=8
3.28加括号五点6-4点七括号的简便演算法
3.28+(5.6-4.7)
=(3.18+0.1)+(5.6-4.7)
=3.18+(0.1+5.6-4.7)
=3.18+(5.7-4.7)
=3.18+1
=4.18
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