1.59×2.98简便计算?
3个回答
展开全部
1.59×2.98
=1.59×(3-0.02)
=1.59×3-1.59×0.02
=4.77-0.038
=4.7382
=1.59×(3-0.02)
=1.59×3-1.59×0.02
=4.77-0.038
=4.7382
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展开全部
1.59×2.98
=1.59x(3-0.2)
=1.59x3-1.59x0.2
=4.77-0.318
=4.452
希望能帮到你!
=1.59x(3-0.2)
=1.59x3-1.59x0.2
=4.77-0.318
=4.452
希望能帮到你!
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展开全部
1.59×2.98
=3.18/2*(3-0.02)
=(3+0.18)*(3-0.02)/2
=[9+3(0.18-0.02)-0.0036]/2
=(9.48-0.0036)/2
=9.4764/2
=4.7382
=3.18/2*(3-0.02)
=(3+0.18)*(3-0.02)/2
=[9+3(0.18-0.02)-0.0036]/2
=(9.48-0.0036)/2
=9.4764/2
=4.7382
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