0.79×101 5.7×0.38+0.62×5.7 4.3×99+4.3
的简算。简便运算。
0.79×101
=0.79x(100+1)
=79+0.79
=79.79
5.7×0.38+0.62×5.7
=5.7x(0.38+0.62)
=5.7x1
=5.7
4.3×99+4.3
=4.3x(99+1)
=4.3x100
=430
希望能帮到你!
=0.79x(100+1)
=79+0.79
=79.79
5.7×0.38+0.62×5.7
=5.7x(0.38+0.62)
=5.7x1
=5.7
4.3×99+4.3
=4.3x(99+1)
=4.3x100
=430
希望能帮到你!
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第1个回答 2018-09-13
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