登录
一、直接写出得数。(每题1分,共32分)
4.3+5.7=
6.3-1.2=
1.6×0.7=
10.5+7.8-1.2=
0.3×1.21=
2.2×5=
6.2×0.6=
8.9+3.6-8.9=
5.6÷10=
7.8÷0.1=
7.2÷0.03=
101×37-3700=
8.1×1000=
0.64÷0.08=
2.8×0.5=
7÷1.4÷2=
0.09÷9=
10×4.1=
2.2×0.7=
0.65÷1.3×0.1=
4.2÷2.1=
3.2÷0.04=
1.25×40=
3.2×0.5÷0.2=
1.23÷0.01=
6.3÷0.9=
18.9÷0.9=
420÷4-15=
3.8×0.1=
5.5÷0.5=
1.2×0.05=
3.8÷(1.9×0.2)=
4.3+5.7=
10
6.3-1.2=
5.1
1.6×0.7=
1.12
10.5+7.8-1.2=
17.1
0.3×1.21=
0.363
2.2×5=
11
6.2×0.6=
3.72
8.9+3.6-8.9=
3.6
5.6÷10=
0.56
7.8÷0.1=
78
7.2÷0.03=
240
101×37-3700=
37
8.1×1000=
8100
0.64÷0.08=
8
2.8×0.5=
1.4
7÷1.4÷2=
2.5
0.09÷9=
0.01
10×4.1=
41
2.2×0.7=
1.54
0.65÷1.3×0.1=
0.05
4.2÷2.1=
2
3.2÷0.04=
80
1.25×40=
50
3.2×0.5÷0.2=
8
1.23÷0.01=
123
6.3÷0.9=
7
18.9÷0.9=
21
420÷4-15=
90
3.8×0.1=
0.38
5.5÷0.5=
11
1.2×0.05=
0.06
3.8÷(1.9×0.2)=
10
答案
10
5.1
1.12
17.1
0.363
11
3.72
3.6
0.56
78
240
37
8100
8
1.4
2.5
0.01
41
1.54
0.05
2
80
50
8
123
7
21
90
0.38
11
0.06
10
5.1
1.12
17.1
0.363
11
3.72
3.6
0.56
78
240
37
8100
8
1.4
2.5
0.01
41
1.54
0.05
2
80
50
8
123
7
21
90
0.38
11
0.06
10
二、用竖式计算,带☆的要验算。(每题3分,验算各1分,共20分)
19.5÷0.78=
☆0.35×0.46=
☆17.55÷4.5=
0.954÷5.3=
0.16÷1.25=
3.46×2.8=
竖式及验算略
19.5÷0.78=
25
☆0.35×0.46=
0.161
☆17.55÷4.5=
3.9
0.954÷5.3=
0.18
0.16÷1.25=
0.128
3.46×2.8=
9.688
竖式及验算略
答案
25
0.161
3.9
0.18
0.128
9.688
竖式及验算略
0.161
3.9
0.18
0.128
9.688
竖式及验算略
三、计算下面各题,能简算的要简算。(每题4分,共24分)
6.68+10-5.73-4.27
1.34×(4.8÷4+8)
8.36×9.1+0.9×8.36
3.5×(2.1+4.8÷0.16)
5.2÷0.5+4.8×2
3.74÷[2.35-(1.5+0.83)]
6.68+10-5.73-4.27
1.34×(4.8÷4+8)
8.36×9.1+0.9×8.36
3.5×(2.1+4.8÷0.16)
5.2÷0.5+4.8×2
3.74÷[2.35-(1.5+0.83)]
答案
6.68
12.328
83.6
112.35
20
187
12.328
83.6
112.35
20
187
