（人教版22年新教材）数学六年级上册 计算专项（二）（含答案）

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人教版数学六年级上册
计算专项（二）
计算下面各题
×4.5 = 2.5 × = ×0.8 = × 0.5 = × 0.9 = 2.8 × =
×6 = × = 6.4 × = 125× = × × = × × =
÷ = 1 ÷ 5%= 1- 72% = 0.5 × 2%= 20%+42%=
计算下面各题，能简算的要简算
×（7+9）× （ × ）× × + ×
× + ×0.75 × × ×（ - ）
36×（ - + ） × 3.3 + × 3.3 ÷[ ( - )×3]
8÷9× （ - ÷ ）÷ ÷ + × -
÷ 95×3.8+6.2÷ × + ÷8
49× 16÷ - ×14 22×（ + 1.2× ）
解方程
- =22 - 1.8 = - =35
+ = 5 = （1 - ） =4.2
参考答案
计算下面各题：1， ，0.2，，1，0.4， ， ，4.8， ， ， ，15，20，28%，0.01，62%
2.计算下面各题，能简算的要简算
×（7+9）× （ × ）× × + ×
= ×16× = × （ ×） = × + ×
= = × = ×（ + ）
= = ×
=
× + ×0.75 × × ×（ - ）
= ×（ + ） = × × = ×（ - ）
= ×1 = 2 × = ×
= = =
36×（ - + ） × 3.3 + × 3.3 ÷[ ( - )×3]
= 36× - 36× + 36× = （ + ）× 3.3 = ÷[ ×3]
= 12- 10 +21 = 3× 3.3 = ÷1
= 23 =9.9 =
8÷9× （ - ÷ ）÷ ÷ + × -
= × = （ - × )× = × + × -
= = （ - ）× = ×（ + ）-
= × = ×2 -
= = -
=
÷ 95×3.8+6.2÷ × + ÷8
= ×57 = 95×3.8+6.2×95 = × + ×
= ×（56+1） = 95×（3.8+6.2） = ×（ + ）
= ×56+ ×1 =95×10 = ×2
= 53+ =950 =
= 53
49× 16÷ - ×14 22×（ + 1.2× ）
=（48+1）× = 16× - ×14 = 22×（0.1+ 0.4 ）
= 48× + 1× = 18 - 10 = 22×0.5
= 43 + = 8 = 11
= 43
3.解方程
- =22 - 1.8 = - =35
解： =22 解： = + 1.8 解： =35
=22× = 3.6 =35×
=84 = 3.6×3 = 75
= 10.8
+ = 5 = （1 - ） =4.2
解： = - 解： = ÷5 解： =4.2
= = =4.2×
= × =9.8
=
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