34.5*76.5-123*1.45-345*6.42如何简算?如何简算?过程详细不要把重要的忽略了!
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34.5*76.5-123*1.45-345*6.42如何简算?如何简算?过程详细不要把重要的忽略了!34.5*76.5-123*1.45-345*6.42如何简算?如何简算?过程详细不要把重要的忽略
34.5*76.5-123*1.45-345*6.42如何简算?如何简算?过程详细不要把重要的忽略了!
34.5*76.5-123*1.45-345*6.42如何简算?
如何简算?过程详细不要把重要的忽略了!
34.5*76.5-123*1.45-345*6.42如何简算?如何简算?过程详细不要把重要的忽略了!
34.5*76.5-123*1.45-345*6.42
=345*7.65-123*1.45-345*6.42
=345*(7.65-6.42)-123*1.45
=345*1.23-123*1.45
=3.45*123-123*1.45
=123*(3.45-1.45)
=123*2
=246
34.5×76.5-123×1.45-345×6.42
=34.5×76.5-34.5×64.2-123×1.45
=34.5×(76.5-64.2)-12.3×14.5
=34.5×12.3-12.3×14.5
=12.3×(34.5-14.5)
=12.3×20
=246
=34.5*76.5-34.5*64.2-123*1.45
=34.5*(76.5-64.2)-123*1.45
=34.5*12.3-123*1.45
=123*3.45-123*1.45
=123*(3.45-1.45)
=123*2
=246
34.5*76.5-345*6.42-123*1.45
34.5乘76.5-345乘6.42-123乘1.45
34.5*76.5-345*6.42-123*1.45的简算
34.5×76.5×-345×6.42-123×1.45 要简算
34.5×76.5-345×6.42-123×1.45(简便算法)
请问“34.5乘76.5--34.5乘6.42-123乘1.45”怎样才能简便计算
34.5*76.5-345*6.42-123*1.45用简便方法怎算
34.5*76.5-123*1.45-345*6.42如何简算?如何简算?过程详细不要把重要的忽略了!
34.5乘76.5减345乘6.42减123乘1045简便方法
简算:34.5×76.5-345×6.42-12.3×14.5
3X-1.45=2X+1.45
3x一1.45=2x+1.45(求解方程)
99*1.45+3*1.45*2的简便运算
3x-1.45=2x+1.45 求x
3/2χ=34.5 解方程
123+123+1+2+3
12.3+34.5+56.7+78.9分之123+345+567+789等于 1÷(3÷7)÷(7÷11)÷(11÷7)511×737373分之373737等于
123+2×123+3×123+.+123×123的和除以7的余数是?