1.25*12.5*0.8的简便计算
来源:学生作业帮助网 编辑:作业帮 时间:2024/09/30 21:21:07
4.13×12.5×0.8=4.13×(12.5×0.8)=4.13×10=41.3
0.8*(12.5-1.25)=0.8*12.5-0.8*1.25=10-1=9
6.05/1.25乘0.8=6.05乘1=1
1.25×(8+0.8)=1.25×8+1.25×0.8=10+1=11
12.5*38*0.8=(12.5*0.8)*38=10*38=380
0.8在分母,就是除以0.8÷0.8=÷5分之4=×4分之5=×1.25
1.25×8.8=1.25×(8+0.8)=1.25×8+1.25×0.8=10+1=11
0.89×12.5-0.9×1.25=0.89×12.5-0.09×12.5=(0.89-0.09)×12.5=0.8×12.5=10
=0.8×125+0.8×12.5+0.8×1.25=100+10+1
12.5*1.7*0.8=12.5*0.8*1.7=10*1.7=17
3.4/12.5=3.4x8/12.5x8=27.2/100=0.272
12.5*0.8=1010*9.6=96
除以的话是(1.25*17.6)+(36.1/0.8)+(2.36*12.5)=22+45.125+29.5=67.125+29.5=96.625是除的话就除不开了啊?!
12.5*8+1.25*8+0.125*8
不是,10是整数
0.8×0.25×0.4×12.5=0.25×0.4×0.8×12.5=0.1×10=1
0.8*72.4*12.5=0.8*12.5*72.4=10*72.4=724
1.25×9-12.5-0.12=1.25×(10-1)-12.5-0.12=12.5-1.25-12.5-0.12=-1.25-0.12=-1.37