五年级小数乘除法计算题
江作青罗带-
小数乘除法计算题
1
、乘法:
5.6
×
2.9
3.77
×
1.8
0.02
×
96
5.22
×
0.3
9.99
×
0.02
4.67
×
0.9
5
×
2.44
1.666
×
6.1
9.432
×
0.002
5.6
×
6.5
4.88
×
2.9
5.61
×
4.3
8.9
×
2.4
5.5
×
55
9.77
×
0.02
1.384
×
5.1
8.78
×
83
2.6
×
61
0.059
×
0.2
4.268
×
1.7
57
×
5.7
9.46
×
2.85
17.8
×
6.4
1.5
×
4.9
2.5
×
0.88
5.555
×
5.2
2.22
×
3.33
7.658
×
85
36.02
×
0.3
56.78
×
8
2
、除法:
85.44
÷
16
42.84
÷
7
101.7
÷
9
67.5
÷
15
230.4
÷
6
21.24
÷
36
0.736
÷
23
43.5
÷
12
35.21
÷
7
39.6
÷
24
6.21
÷
0.03
210
÷
1.4
51.3
÷
0.27
91.2
÷
3.8
0.756
÷
0.18
0.66
÷
0.3
11.97
÷
1.5
69.6
÷
2.9
38.4
÷
0.8
15
÷
0.06
(循环小数的用简便方法,除不尽保
留
2
位小数):
8.2
÷
0.12
0.8
÷
0.9
76.4
÷
5.4
4.7
÷
3
1.25
÷
1.2
32
÷
42
14.36
÷
2.7
8.33
÷
6.2
1.7
÷
0.03
2.41
÷
0.7
3
、用竖式计算
0.396
÷
1.2=
0.756
÷
0.36=
15.6
×
13=
0.18
×
15=
0.025
×
14=
3.06
×
36=
0.04
×
0.12
=
7.15
×
22
16.9
÷
0.13
13.76
×
0.8=
6.4
×
0.5
35.4
×
4.2
0.25
×
0.046
0.12
×
0.5
×
0.16
< br>=
3.84
×
2.6
≈
90.75
÷
3.3
1.55
÷
3.9
5.2
×
0.6
4.48
×
0.4
0.042
×
0.54
2.52
×
3.4
4.8
×
0.25
=
5.76
×
3
=
(保留一位小数)
3.68
×
0.25
3.7
×
0.016
8.4
×
1.3
5.25
×
5
0.76
×
0.32
1.08
×
25
0.125
×
1.4
≈(保留
两位小数
)
2.5
÷
0.7=
(保留三位小数)
10.1
÷
3.3=
(商用循环小数)
10.75
÷
12.5=
(用乘法验算)
3.25
×
9.04=
(用除法验算)
< br>4
、
脱式计算
(能简算的要简算
)
2.5
×
7.1
×
4
16.12
×
99
+
16.12
5.2
×
0.9
+
0.9
7.28
×
99+7.28
4.3
×
50
×
0.2
64
-
2.
64
×
0.5
26
×
15.7
+
15.7
×
24
(2.275
+
< br>0.625)
×
0.28
3.94+34.3
×
0.2
1.2
×
(9.6
÷
2.4)
< br>÷
4.8
8.9
×
1.1
×
4.7
2.7
×
5
.4
×
3.9
3.6
×
9.85-5.46
8.05
×
3.4+7.6
6.5
8
×
4.5
×
0.9
2.8
×
0.5+1.58
32
+
4.
9
-
0.9
4.8
-
4.8
×
0.5
(1.
25
-
0.125)
×
8
4.8
×
100.1
56.
5
×
99
+
5
6.5
7.09
×
10.8
-
0.8
×
< br>7.09
4.85 + 0.35
÷
1.4
8.7
×
17.4 - 8.7
×
7.4
12.5
< br>×
0.4
×
2.5
×
8
0.87
×
3.16+4.64
9.5
×
101
0.68
÷(
5.2
-3.5
)×
1.25
40.5
÷
0.81
×
0.18
4.8
×(
15
÷
2.4
)
6.81+6.81
×
99
0.25
×
185
×
40
p>
4.4
×
0.8
-
3.4
×
0.8
(9.37+9
.
< br>37+9
.
37+9
.
37)
×
2
.
5
2.37
×
6.3+2.37
×
3.7
2.5
×
1.25
×
0.32
3.8
×
10.1
2.5
×
(
3.8
×
0.04)
7.69
×
101
3.8
×
10.1
0.25
×
39+0.25
0.125
×
72
p>
46
×
0.33+54
×
0.33
(8
×
5.27)
×
1.25
6.81+6.81
×
99
p>
0.25
×
185
×
40