简便算:4.3*1.65+2.35*4.3 (2)9.9*7.6+99*0.24 (3)1.25*5.6 (4)5.1*
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简便算:4.3*1.65+2.35*4.3 (2)9.9*7.6+99*0.24 (3)1.25*5.6 (4)5.1*19.96-19.96+19.96*5.9
4.3*1.65+2.35*4.3
=4.3x(1.65+2.35)
=4.3x4
=17.2
9.9*7.6+99*0.24
=9.9x7.6+9.9x2.4
=9.9x(7.6+2.4)
=9.9x10
=99
1.25*5.6
=1.25x8x0.7
=1x0.7
=0.7
5.1*19.96-19.96+19.96*5.9
=19.96x(5.1-1+5.9)
=19.96x10
=199.6
请点击下面的【选为满意回答】按钮,
=4.3x(1.65+2.35)
=4.3x4
=17.2
9.9*7.6+99*0.24
=9.9x7.6+9.9x2.4
=9.9x(7.6+2.4)
=9.9x10
=99
1.25*5.6
=1.25x8x0.7
=1x0.7
=0.7
5.1*19.96-19.96+19.96*5.9
=19.96x(5.1-1+5.9)
=19.96x10
=199.6
请点击下面的【选为满意回答】按钮,
简便算:4.3*1.65+2.35*4.3 (2)9.9*7.6+99*0.24 (3)1.25*5.6 (4)5.1*
简便计算.4.3×9.9
99×4.3 的简便运算
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