简算 1.6×1.25 4.13×6.7+3.3×4.3 1.25×3.69×8 32.4÷2.5÷0.4
来源:学生作业帮 编辑:神马作文网作业帮 分类:数学作业 时间:2024/11/10 17:37:52
简算 1.6×1.25 4.13×6.7+3.3×4.3 1.25×3.69×8 32.4÷2.5÷0.4
如果大家觉得太麻烦 就挑出其中的一两个吧
如果大家觉得太麻烦 就挑出其中的一两个吧
1.6×1.25
=0.8×1.25×2
=1×2
2
4.3×6.7+3.3×4.3 是4.3 吧
=4.3×(6.7+3.3)
=4.3×10
=4.3
1.25×3.69×8
=10×3.69
=36.9
32.4÷2.5÷0.4
=32.5÷(2.5×0.4)
=32.5÷1
=32.5
再问: 是4.13,我写错了,呵呵,对不起哈!
再答: 还是4.13???
再问: 对啊 都是4.13
再答: 4.13×6.7+3.3×4.13 =4.13×(6.7+3.3) =4.13×10 =41.3
=0.8×1.25×2
=1×2
2
4.3×6.7+3.3×4.3 是4.3 吧
=4.3×(6.7+3.3)
=4.3×10
=4.3
1.25×3.69×8
=10×3.69
=36.9
32.4÷2.5÷0.4
=32.5÷(2.5×0.4)
=32.5÷1
=32.5
再问: 是4.13,我写错了,呵呵,对不起哈!
再答: 还是4.13???
再问: 对啊 都是4.13
再答: 4.13×6.7+3.3×4.13 =4.13×(6.7+3.3) =4.13×10 =41.3