如题所述
0.88×12.5
=0.11×8×12.5
=0.11×(8×12.5)
=0.11×100
=11
备注:看到12.5找8,从而将0.88分解成0.11×8,再将8和12.5结合可简便。
=0.11×8×12.5
=0.11×(8×12.5)
=0.11×100
=11
备注:看到12.5找8,从而将0.88分解成0.11×8,再将8和12.5结合可简便。
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第1个回答 2020-10-13
0.88×12.5
=0.11×8×12.5
=0.11×(8×12.5)
=0.11×100
=11
=0.11×8×12.5
=0.11×(8×12.5)
=0.11×100
=11