0.79×12.5简便算

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0.79×12.5简便算0.79×12.5简便算0.79×12.5简便算0.79×12.5=(0.8-0.01)×12.5=0.8×12.5-0.01×12.5=10-0.125=9.8750.79*

0.79×12.5简便算
0.79×12.5简便算

0.79×12.5简便算
0.79×12.5
=(0.8-0.01)×12.5
=0.8×12.5-0.01×12.5
=10-0.125
=9.875

0.79*12.5
＝（0.8-0.01）*12.5
＝0.8*12.5-0.01*12.5
＝10-0.125
＝9.875

0.79×12.5
=(0.8-0.01)×12.5
=0.8×12.5-0.01×12.5
=10-0.125
=9.875

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