用简便方法计算下面的题
4个回答
展开全部
0.37×2.5×4
=0.37×(2.5×4)
=0.37×10
=3.7
4.35×1.25×80
=4.35×(1.25×80)
=4.35×100
=435
0.372×0.4×50
=0.372×(0.4×50)
=0.372×20
=7.44
102×3.6
核裤 =(100+2)桐拍×3.6
=100×3.6+2×3.6
=360+7.2
=367.2
8.8×1.25
=1.1×(8×1.25)
=1.1×10
=11
0.67×9.9
=0.67×(10-0.1)
局氏羡=0.67×10-0.67×0.1
=6.7-0.067
=6.633
展开全部
0.37*2.5*4
=0.37*10
=3.7
4.35*1.25*80
=4.35*100
=435
0.372*0.4*50
=0.372*20
=7.44
102*3.6
=(100+2)*3.6
=360+7.2
=367.2
8.8*1.25
=1.25*(8+0.8)
=1.25*8+1.25*0.8
=10+1
=11
0.67*9.9
=0.67*(10-0.1)
=0.67*10-0.67*0.1
=6.7-0.06
=6.694
=0.37*10
=3.7
4.35*1.25*80
=4.35*100
=435
0.372*0.4*50
=0.372*20
=7.44
102*3.6
=(100+2)*3.6
=360+7.2
=367.2
8.8*1.25
=1.25*(8+0.8)
=1.25*8+1.25*0.8
=10+1
=11
0.67*9.9
=0.67*(10-0.1)
=0.67*10-0.67*0.1
=6.7-0.06
=6.694
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