15.7-12.6X0.3变成简便算式怎么做

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15.7-12.6X0.3变成简便算式怎么做15.7-12.6X0.3变成简便算式怎么做15.7-12.6X0.3变成简便算式怎么做15.7-12.6×0.3=15.7-﹙10+2.6﹚×0.3=15

15.7-12.6X0.3变成简便算式怎么做
15.7-12.6X0.3变成简便算式怎么做

15.7-12.6X0.3变成简便算式怎么做
15.7-12.6×0.3
=15.7-﹙10+2.6﹚×0.3
=15.7-﹙3+0.78﹚
=15.7-3.78
=11.92

15.7-12.6X0.3
=15.7-3.78
=11.92