(1)8.4+17.85+12.6+2.15 (2)7.85-3.2-1.8 (4)7.4+0.24-7.4+0.024 查看更多

 

题目列表(包括答案和解析)

450-140= 25÷7= 900+238= 600-9×8=
90-7×5= 26+30-28= 48÷(2+4)= 780-772=
26+24= 80-30= 78-26=
5
6
-
1
2
=
(
1
2
+
1
3
+
1
4
) × 24
=
0.25×2.69×4= 10-2.87-7.13=
12
7
÷24=
4
5
=
0.87-0.49 4.9×0.7=
4
5
÷
7
10
=
8
5
 ÷
5
8
=
7
18
÷
5
9
=
1
2
×
1
5
=
2+
4
9
=
(25+4)×4= 12.37-3.25-6.75= 3/14×6= 0.51÷17=
14-7.4= 5.2÷1.3= 25×12=
3
16
÷
3
16
=
9
26
÷
8
13
=
2.5-2= 36-29= 120÷4=
300+25= 630-30= 4×50= 15.9+10.8=
26×13= 24÷4+56÷4= 8-2.5= 12×2.5=
2吨50千克=
2.05
2.05
吨.

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450-140= 25÷7= 900+238= 600-9×8=
90-7×5= 26+30-28= 48÷(2+4)= 780-772=
26+24= 80-30= 78-26=
5
6
-
1
2
=
(
1
2
+
1
3
+
1
4
) × 24
=
0.25×2.69×4= 10-2.87-7.13=
12
7
÷24=
4
5
=
0.87-0.49 4.9×0.7=
4
5
÷
7
10
=
8
5
 ÷
5
8
=
7
18
÷
5
9
=
1
2
×
1
5
=
2+
4
9
=
(25+4)×4= 12.37-3.25-6.75= 3/14×6= 0.51÷17=
14-7.4= 5.2÷1.3= 25×12=
3
16
÷
3
16
=
9
26
÷
8
13
=
2.5-2= 36-29= 120÷4=
300+25= 630-30= 4×50= 15.9+10.8=
26×13= 24÷4+56÷4= 8-2.5= 12×2.5=
2吨50千克=______吨.

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450-140= 25÷7= 900+238= 600-9×8=
90-7×5= 26+30-28= 48÷(2+4)= 780-772=
26+24= 80-30= 78-26=
5
6
-
1
2
=
(
1
2
+
1
3
+
1
4
) × 24
=
0.25×2.69×4= 10-2.87-7.13=
12
7
÷24=
4
5
=
0.87-0.49 4.9×0.7=
4
5
÷
7
10
=
8
5
 ÷
5
8
=
7
18
÷
5
9
=
1
2
×
1
5
=
2+
4
9
=
(25+4)×4= 12.37-3.25-6.75= 3/14×6= 0.51÷17=
14-7.4= 5.2÷1.3= 25×12=
3
16
÷
3
16
=
9
26
÷
8
13
=
2.5-2= 36-29= 120÷4=
300+25= 630-30= 4×50= 15.9+10.8=
26×13= 24÷4+56÷4= 8-2.5= 12×2.5=
2吨50千克=______吨.

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计算题.
17.3+73.2+82.7     
575+189+225        5.85-2.75-0.25
768-474-126         5.85+1.89+4.15     24.8+14.6+25.4
42.5-23.17-6.83     3.8+2.37+6.2+12.63.

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(2012?莲都区模拟)(1)
3
4
x+
1
8
=
1
2
                   
(2)X:8=
1
4
1
3
4

(3)85×0.75+4785÷15          
(4)4×17×125×
3
24
÷
1
2

(5)
1
3
÷〔
11
52
÷2
3
4
×(4.3-1.8)〕÷26
(6)〔1-(
1
2
+
1
6
)〕÷
1
3

(7)n!表示从1到n的n个连续自然数的乘积,例如 10!=10×9×8×…×2×1请计算:1!+4!+5!

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