五年级小数加减乘除混合运算计算题练习题
-
小数混合运算专项训练
1
、解方程。
(
1
)
5x
=
450
(
2
)
12
(<
/p>
6
-
x
)=
p>
42
(
3
)1.2×6+4x=
12
(
4
)
8.5
x
-
x
=
22
.5
2
、用简便方法计算。
(
1
)
0.25
×
3.2
×
12.5
(
3
)
p>
0.25×44
3
、用脱式计算。
< br>(
1
)
2.6+1.4×1.5
-
1.5
(
3
)
2.6+2.4×
(
1.4
-
1.05
)
30.8÷[14
-(9.85+1.07)]
[60-
2.881÷0.43
-<
/p>
0.24×3.5
(
2
p>
)36×10.1
(
4
)
22.
2×4+17
.
8×4
(
2
(
)
37
-3.6÷4.8)
÷12.5
(
4
)
15.6÷16×
p>
(
0.25+1.25
)
< br>
(9.5+28.9)]÷0.18
20×[(2.44
-
1.8)÷0.4+0.15]
28-
(3.4+1.25×2.4)
2.55×7.1+2.45×7.1
777×9+1111×3
0.8×[15.5
-(3.21+5.79)]
(31.8+3.2×4)
÷
5
0.64×25×7.8+2.2
36.25÷4.25×9.9
5180
24÷2.4-2.5×0.8
6
71×15
-974
19.4×6.1×2.3
18.1×0.92+3.93
p>
31.5×4÷(6+3)
2÷2.5+2.5÷2
-705×6
(4121+2389)÷7
469×12+1492
5.67×0.2
-0.62
0.4×0.7×0.25
0.78+5.436+1
4. 8× 5÷4+1÷4
9. 9x5÷6+5÷6
10. 3÷4x8÷9
-
1÷3
14.
31x5÷6
-
5÷6
20. 3x2÷9+1÷3
36.
178-
145÷5×6+42
6.5×(
4.8-
1.2×4)
p>
2.55×7.1+2.45×7.1
(31.8+3.2×4)÷5
0.64×25×7.8+2.2
194
-64.8÷1.8×0.9
16.
5÷9x18
-
14x2÷7
35.
95÷(
64-45
)
7.2÷0.8
-
1.2×5
(3.4+1.25×2.4)
777×9+1111×3
31.5×4÷(6+3)
2÷2.5+2.5÷2
36.72÷4.25×9.9
28-
5180
-705×6
24÷2.4-2.5×0.8
(4121+2389)÷7
671×15
-974
469×12+1492
405×(3213
-3189)
19.4×6.1×2.3
18.1×0.92+3.93
0.4×0.7×0.25
0.78+5.436+1
4.07×0.86+9.12
1437×27+27×563
2160÷〔(
83-79
)×18〕
5.67×0.2
-0.62
0.043×24+0.875
2
40×78÷(
154-115
)
75-
(
12+18
< br>)〕÷15
+840÷24×5
〔
280
325÷13×(266-
250)
85×(95-1440÷24)
58870÷(105+20×2)
1437×27+27×563
81432÷(13×52+
78) [37.85
-
(
7.85+6.4
)]
×30
(
947
-
599
)+76×64
[192
-(
54
+
3
8
)]×67
(
< br>947
-
599
)+76×64
60
2.881÷0.43-0.24×3.5
31.8 3.2×4)÷5
194
36.72÷4.25×9.9
0.8×[(10-6.76)÷1.2]
36×(913-276÷23)
81432÷(13×52+
78)
-
(9.5
+28.9)÷0.18
0.8×〔
15.5-(3.21+5.79)
〕
-64.8÷1.8×0.9
3.416÷(0.016×35)
6.8×0.55)÷8.5
(6.8-
0.12×
4.8÷0.12×4.8
(
58+37
)÷(
64-
9×5)
812-
700÷(9+31×11)
156×[(17.7
-
7.2)÷3]
(3.2×1.5+2.5)÷1.6
85+14×(14+208÷26)
120-
36×4÷18+35
3.2×(
1.5+2.5
)÷1.6
(6.8-
6.8×0.55)÷8.5<
/p>
(3.2×1.5+2.5)÷1.6
15-
10.75×0.4
-5.7
(
58+37
)
÷
(
64-
9×5)
[
(3.2×1.5+2.5)÷
1.6
9.72×1.6
-18
.305÷7
(
58+37
)÷(
64-
9×5)
0.12× 4.8÷0.12×4.8
36×4÷18+35
347+45×2
-
4160÷52
(
7.1-5.6
< br>)
×0.9
-
1.15]
p>
÷2.5
5.4÷[2.6×(
3.7-2
.9
)
+0.62]
120-