用简便计算0.77x0.8+0.11x2.4?
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0.77x0.8+0.11x2.4 自家将0.77拆分成0.11x7然后利用乘法结合律,最后再利用乘法分配律来进行简便运算
0.77x0.8 + 0.11x2.4
=0.11x7x0.8+0.11x2.4
=0.11x(7x0.8+2.4)
=0.11x(5.6+2.4)
=0.11x8
=0.88
0.77x0.8 + 0.11x2.4
=0.11x7x0.8+0.11x2.4
=0.11x(7x0.8+2.4)
=0.11x(5.6+2.4)
=0.11x8
=0.88
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0.77x0.8+0.11x2.4
=0.11x5.6+0.11x2.4
=0.11*(5.6+2.4)
=0.11*8
=0.88
=0.11x5.6+0.11x2.4
=0.11*(5.6+2.4)
=0.11*8
=0.88
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