题目内容

$数学公式$ ×1 $数学公式$ +1.2÷ $数学公式$

解： $\text{[math]}$ ×1 $\text{[math]}$ +1.2÷ $\text{[math]}$ ，
= $\text{[math]}$ × $\text{[math]}$ + $\text{[math]}$ × $\text{[math]}$ ，
=（ $\text{[math]}$ + $\text{[math]}$ ）× $\text{[math]}$ ，
= $\text{[math]}$ × $\text{[math]}$ ，
= $\text{[math]}$ ．
分析：把除法改为乘法，原式变为 $\text{[math]}$ × $\text{[math]}$ + $\text{[math]}$ × $\text{[math]}$ ，运用乘法分配律简算．
点评：通过数字转化以及乘除法的转化，运用运算定律简算．

练习册系列答案

3.2+4.8=	6.3-0.94=	0.25×4=	5×1.2=
4.8÷0.6=	4.8÷24=	3.6-2.4=	6-4.6=
8-3.4=	6×0.21=	1.25×8=	0.8÷0.5=
25×0.3=	0.63-0.3=	2.5+7.5=	34×0.1=
7-0.99=	21÷0.7=	5×2.4=	3×1.03=
3.2÷4=	1.5÷30=	5.1÷3=	0.37÷0.37=
0.28÷14=	0.16÷4=	8×0.05=	4×0.125=
4÷8=	7.5-0.7=	9-0.9=	7÷2=
2.8÷0.7=	21-0.21=	5÷0.01=	2.8×0=
7÷0.07=	6.3÷0.5=	0.32÷0.8=	1÷0.25=
0.25×0.4=	30×2.3=	3.6÷1.2=	2.5+1.2=
3.5×0.2=	9÷0.45=	0.96÷0.16=	4.8-2.9=
0.5÷0.25=	7.6+2.4=	0.17×0.4=	8.2×0.01=
1.72-0.73=	0.46÷2=	1.9×0.8=	1.2×0.3=
1-0.92=	0.16×0.7=	0.56÷0.16=	8÷0.6=

3×1.5=	2.5×4=	0÷0.9=	4÷0.2=
0.56÷0.7=	0.24×5=	0.2×5=	2.1-0.87=
3.54-3.5=	3.4-1.5=	12÷0.6=	8×0.125=
0.7×11=	0.13+1.7=	3.15÷0.5=	0.9÷4.5=
0.2×0.3=	1.2+0.56=	3-1.7=	1÷0.25=
78÷1.3=	15÷0.3=	2.1+1.49=	6.24-1.5=
1.2×0.3=	6.3÷6.3=	1.6×0.2=	3.7-1.2=
4.58-3.5=	72.8÷8=	3.5×0.3=	0.25×100=
3.2-2=	0.51÷17=	5.3÷0.01=	1.03×3=
2.8+12=	3.5×2=	2.2×0.1=	1-0.25=
0.62-0.32=	6.3÷0.21=	1.7×10=	0.12×3=
0.45×2=	1.2÷0.3=	1÷2=	4.8×100=
0.25×8=	0.89÷8.9=	17.8+2.2=	0.8÷0.2=
5.79÷0.1=	0.35+0.65=	8.9-0.9=	9.2-9.2=
3.6÷0.4=	15.15÷15=	0.2×0.3×0.1=	1.34×4×2.5=

1	0	1	0	1	0	1	0
0	1	0	1	0	1	0	1
1	0	1	0	1	0	1	0
0	1	0	1	0	1	0	0
1	0	1	0	1	0	1	0
0	1	0	1	0	1	0	1
1	0	1	0	1	0	1	0
0	1	0	1	0	1	0	1

1	1	1	1	1	1	1	1
1	1	1	1	1	1	1	1
1	1	1	1	1	1	1	1
1	1	1	1	1	1	1	1
1	1	1	1	1	1	A	1
1	1	1	1	1	1	1	1
1	1	1	1	1	1	1	1
1	1	1	1	1	1	1	1

1	0	1	0	1	0	1	0
0	1	0	1	0	1	0	1
1	0	1	0	1	0	1	0
0	1	0	1	0	1	0	0
1	0	1	0	1	0	1	0
0	1	0	1	0	1	0	1
1	0	1	0	1	0	1	0
0	1	0	1	0	1	0	1

1	1	1	1	1	1	1	1
1	1	1	1	1	1	1	1
1	1	1	1	1	1	1	1
1	1	1	1	1	1	1	1
1	1	1	1	1	1	A	1
1	1	1	1	1	1	1	1
1	1	1	1	1	1	1	1
1	1	1	1	1	1	1	1

×1+1.2÷

试题分类

$数学公式$ ×1 $数学公式$ +1.2÷ $数学公式$

1	0	1	0	1	0	1	0
0	1	0	1	0	1	0	1
1	0	1	0	1	0	1	0
0	1	0	1	0	1	0	0
1	0	1	0	1	0	1	0
0	1	0	1	0	1	0	1
1	0	1	0	1	0	1	0
0	1	0	1	0	1	0	1

1	1	1	1	1	1	1	1
1	1	1	1	1	1	1	1
1	1	1	1	1	1	1	1
1	1	1	1	1	1	1	1
1	1	1	1	1	1	A	1
1	1	1	1	1	1	1	1
1	1	1	1	1	1	1	1
1	1	1	1	1	1	1	1