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7×5
5
14
=
5
8
÷
2
3
=
1
6
+
2
5
=
2
3
×
3
4
=
1+
1
2
-0.4=
1
4
+0.75=
1
3
+
2
9
=
6
7
÷9=
1
4
+
1
2
=
5
6
×0.4=
8
9
=
1
9
×
1
9
=
(2+
2
5
)×(1+
1
4
)=
2
3
×9=
6
9
+
1
6
=
1
3
=
1
2
+1
1
3
=
5-(2+
3
8
)=
4.5÷
1
4
=
39×
4
13
=
11×(10+
1
11
)=
11+(3+
2
3
)=
3
5
×
5
6
=
3
4
=
12-(6+
3
4
)=
1÷(1+
3
4
)=
20÷20%=
1÷0.01= 1.12= 9.9÷(1+
4
5
)=
81÷
5
9
=
1.65-0÷1.65=
2
3
×
4
9
×
1
2
=
5-1.4-1.6= (0.18+0.9)÷9=
3
10
×1.25=
1.25×0.16×8=
5
8
+7.3÷10%=
5
8
+9-0.2=
5.08-0.74-1.26=
1
4
×0.2=
1-.0375÷
5
8
=
8÷0.5+
1
4
×(1+
1
4
)=
1
12
+
5
6
)×24=
10(3+
1
7
)÷(3+
1
7
)=
(3+
1
2
+5+
1
3
+2+
1
2
)-(5+
1
3
)=
2
5
+
1
5
÷
2
5
+
1
5
=
1-
3
10
-
2
5
=
3-(2+
4
9
)+(2+
4
9
)=
3
8
-
3
8
÷3=
0×(3+
2
9
)+(1+
2
5
)=
1
6
+
1
7
-
1
6
+
1
7
=
0.125×64×0.125=
5
4
×8+8×
1
4
=
3
8
+
3
4
×16=
5
9
-
5
6
+
4
9
=
分析:根据整数、分数、小数的加减乘除法的计算法则进行解答即可.
解答:
解:7×5
5
14
=37
1
2
5
8
÷
2
3
=
15
16
1
6
+
2
5
=
17
30
2
3
×
3
4
=
1
2
1+
1
2
-0.4=0.1
1
4
+0.75=1
1
3
+
2
9
=
5
9
6
7
÷9=
2
21
1
4
+
1
2
=
3
4
5
6
×0.4=
1
3
8
9
=
9
2
1
9
×
1
9
=
1
81
(2+
2
5
)×(1+
1
4
)=3
2
3
×9=6
6
9
+
1
6
=
5
6
1
3
=12
1
2
+1
1
3
=1
5
6
5-(2+
3
8
)=2
5
8
4.5÷
1
4
=18
39×
4
13
=12
11×(10+
1
11
)=111
11+(3+
2
3
)14
2
3
=
3
5
×
5
6
=
1
2
3
4
=6
12-(6+
3
4
)=5
1
4
1÷(1+
3
4
)=
4
7
20÷20%=100
1÷0.01=100 1.12=1.21 9.9÷(1+
4
5
)=5.5
81÷
5
9
=
729
5
1.65-0÷1.65=1.65
2
3
×
4
9
×
1
2
=
4
27
5-1.4-1.6=2 (0.18+0.9)÷9=0.12
3
10
×1.25=3
1.25×0.16×8=1.6
5
8
+7.3÷10%=1.155
5
8
+9-0.2=9.425
5.08-0.74-1.26=3.08
1
4
×0.2=
1
20
1-0.375÷
5
8
=0
8÷0.5+
1
4
×(1+
1
4
)=16
5
16
1
12
+
5
6
)×24=22
10(3+
1
7
)÷(3+
1
7
)=10
(3+
1
2
+5+
1
3
+2+
1
2
)-(5+
1
3
)=6
2
5
+
1
5
÷
2
5
+
1
5
=
11
10
1-
3
10
-
2
5
=
1
2
3-(2+
4
9
)+(2+
4
9
)=3
3
8
-
3
8
÷3=
1
4
0×(3+
2
9
)+(1+
2
5
)=1
2
5
1
6
+
1
7
-
1
6
+
1
7
=
2
7
0.125×64×0.125=1
5
4
×8+8×
1
4
=12
3
8
+
3
4
×16=12
3
8
5
9
-
5
6
+
4
9
=
1
6
点评:考查了整数、分数、小数的加减乘除法的口算能力,注意认真计算即可.
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