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12.5*88.8的简便方法

1)8.88×12.5 =(1.11×8)×12.5 =1.11×(8×12.5) =1.11×100 =111 2)8.88×12.5 =(8+0.8+0.08)×12.5 =8×12.5+0.8×12.5+0.08×12.5 =100+10+1 =111

=12.5x8x11.1 =100x11.1 =1110

0.88×12.5+0.88 =0.11×8×12.5+0.88 =0.11×100+0.88 =11+0.88 =11.88 很高兴为您解答,祝你学习进步>学习宝典】团队为您答题。 有不明白的可以追问!如果您认可我的回答。 请点击下面的【选为满意回答】按钮。 如果有其他问题请另发或点击向我求...

8.88×12.5 =(1.11x8)x12.5 =1.11x(8x12.5) =1.11x100 =111

8.88×12.5 =8.88×100/8 =111 8.88×12.5 =8*1.11×12.5 =8*12.5*1.11 =100*1.11 =111 0.99*99 =0.99*(100-1) =99-0.99 =98.01 0.99*99 =(1-0.01)*99 =99-0.99 =98.01

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1.25×88+12÷5分之4 解:原式=1.25×(80+8)+12×4分之5 =1.25×80+1.25×8+15 =100+10+15 =125 即1.25×88+12÷5分之4=125

12.5*88.8 =12.5x8x11.1 =100x11.1 =1110

8.88x12.5 =1.11x8x12.5 =1.11x100 =111

8.88x12.5 = 8x12.5+0.8x12.5+0.08x12.5=100+10+1 = 111 8.88×12.5 = 888x0.125=888/8=111

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