简算(要过程)694+126-294 9.43-4.75+0.57 65×10.1 0.48×99+4.8×0.1
问题描述:
简算(要过程)694+126-294 9.43-4.75+0.57 65×10.1 0.48×99+4.8×0.1
答
694+126-294
=694-294+126
=400+126
=526
9.43-4.75+0.57
=9.43+0.57-4.75
=10-4.75
=5.25
65×10.1
=65*10+65*0.1
=650+6.5
=656.5
0.48×99+4.8×0.1
=0.48*99+0.48*1
=0.48*(99+1)
=48
答
694+126-294
=(694-294)+126
=400+126
=526
9.43-4.75+0.57
=(9.43+0.57)-4.75
=10-4.75
=5.25
65×10.1
=65x(10+0.1)
=65+6.5
=71.5
0.48×99+4.8×0.1
=0.48×99+0.48×1
=0.48x(99+1)
=0.48x100
=48
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答
694+126-294=694-294+126=400+126=526 9.43-4.75+0.57=9.43+0.57-4.75=10-4.75=5.25 65×10.1=65x10+65x0.1=650+6.5=656.5 0.48×99+4.8×0.1=0.48x(99+1)=0.48x100=48