Question

下面各题,怎样简便怎样算.983-（583+126） 136乘101-136 175乘56-56乘75 48乘125 3？

Answer 1

983-(583+126)
=983-583-126
=400-126
=274
136×101-136
=136×(101-1)
=136×100
=13600
175×56-56×75
=(100+75)×56-56×75
=100×56+75×56-56×75
=100×56
=5600
48×125
=4×12×25×5
=(4×25)×(12×5)
=100×60
=6000
355+260+140+245
=(355+245)+(260+140)
=600+400
=1000
1500÷25÷4
=1500÷(25×4)
=1500÷100
=15
135×99
=135×(100-1)
=13500-135
=13365
37×94+37×5+37
=37×(94+5+1)
=37×100
=3700
425-38+75
=425+75-38
=500-38
=462,3,983-（583+126）=983-583-126=274
136*101-136=100*136=13600
175*56-56*75=100*56=5600
48*125=8*125*6=6000
355+260+140+245 =1000
1500/25/4=1500/100=15
135*99=13500-135=13365
37*94+37*5+37=37*100=3700
425-38+75=500-38=462,0,下面各题,怎样简便怎样算.983-（583+126） 136乘101-136 175乘56-56乘75 48乘125 355+260+140+245
还有：1500/25/4 135乘99 37乘94+37乘5+37 425-38+75 用递等式计算.本人没分了.