Question

1.08÷(12.3-6.9)脱式计算

Answer 1

1.08÷(12.3-6.9)脱式计算

1.08÷(12.3-6.9)
=1.08÷5.4
=2

3.4×(12.3-6.9)简便计算

3.4×(12.3-6.9)
=3.4×(5+0.4)
=3.5x5 +3.4x0.4
=17 +1.36
=18.36

3.4×（12.3-6.9）简便运算

3.4乘12.3-3.4乘6.9
=41.82-23.46
=18.36

6.9×101脱式计算

6.9×101
=6.9×（100+1）
=6.9×100+6.9
=696.9

12.3x99 12.3用脱式计算

12.3x99 12.3用脱式计算
12.3x99+ 12.3
=12.3×（99+1）
=12.3×100
=1230

1.08x9+1.08脱式计算

原式等于
1.08×（9+1）
=1.08×10
=10.8
所以原式的计算结果为10.8

脱式计算．1.08×0.8÷0

（1）1.08×0.8÷0.27
=0.864÷0.27
=3.2；

（2）44.28÷0.9÷4.1
=49.2÷4.1
=12；

（3）2.05÷0.82+33.6
=2.5+33.6
=36.1．

6.9×0.75÷0.5脱式计算

6.9×0.75÷0.5
=6.9x1.5
=10.35

脱式计算6.8-4.95+1.08

6.8-4.95+1.08
=1.85+1.08
=2.93

1.08乘9.8的脱式计算

1.08x9.8
=1.08x(10-0.2)
=1.08x10-1.08x0.2
=10.8-0.216
=10.584