1.76乘以9点5目录
1.58乘九点9 0点158
=1.58x9.9 1.58x0.1
=1.58x(9.9 0.1)
=1.58x10
=15.8
希望能帮到你
6.7×2.5 9.9×7.5 3.2×2.5
=(6.7 9.9×3 3.2)×2.5
=(9.9 9.9×3)×2.5
=9.9×4×2.5
=4×2.5×9.9
=10×9.9
=99
0.25乘九点6×12点五怎样简算
0.25*9.6*12.5
=0.25*4*0.3*8*12.5
=1*0.3*100
=30
1.76乘以9点5目录
1.58乘九点9 0点158
=1.58x9.9 1.58x0.1
=1.58x(9.9 0.1)
=1.58x10
=15.8
希望能帮到你
6.7×2.5 9.9×7.5 3.2×2.5
=(6.7 9.9×3 3.2)×2.5
=(9.9 9.9×3)×2.5
=9.9×4×2.5
=4×2.5×9.9
=10×9.9
=99
0.25乘九点6×12点五怎样简算
0.25*9.6*12.5
=0.25*4*0.3*8*12.5
=1*0.3*100
=30
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