3.4+3.4乘11+12乘6.6简算
来源:学生作业帮 编辑:作业帮 分类:数学作业 时间:2024/05/10 04:54:32
3.4+3.4乘11+12乘6.6简算
5.6乘0.375+八分之三乘5.4-0.375乘0.9 这道题也简算
5.6乘0.375+八分之三乘5.4-0.375乘0.9 这道题也简算
3.4+3.4乘11+12乘6.6
=3.4*(1+11)+12*6.6
=3.4*12+12*6.6
=12*(3.4+6.6)
=12*10
=120
5.6乘0.375+八分之三乘5.4-0.375乘0.9
=5.6*0.375+0.375*5.4-0.375*0.9
=0.375*(5.6+5.4-0.9)
=0.375*(10+0.1)
=0.375*10+0.375*0.1
=3.75+0.0375
=3.7875
=3.4*(1+11)+12*6.6
=3.4*12+12*6.6
=12*(3.4+6.6)
=12*10
=120
5.6乘0.375+八分之三乘5.4-0.375乘0.9
=5.6*0.375+0.375*5.4-0.375*0.9
=0.375*(5.6+5.4-0.9)
=0.375*(10+0.1)
=0.375*10+0.375*0.1
=3.75+0.0375
=3.7875
3.4+3.4乘11+12乘6.6简算
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