题目内容

直接写出得数．
35×20=		 480-70= 160×3= 340-150=
178+22= 62-14= 700+80= 54÷9=
分析：根据整数加减乘除的计算方法进行计算．
解答：解：
35×20=700 480-70=410 160×3=480 340-150=190
178+22=200 62-14=48 700+80=780 54÷9=6
点评：口算时，注意运算符号和数据，然后再进一步计算．
练习册系列答案
相关题目
直接写出得数
2
5
+
3
5
=
1
7
+
1
11
=
3
8
-0.125=
5
6
-
5
13
=
1
4
+0.3=
10-
1
5
=
1
7
×
1
11
=
2
5
×
3
5
=
5
6
×
5
13
=		 10×
1
5
=
直接写出得数．
3
5
+
2
5
=
7
9
-
5
9
=
7
15
-
2
15
=
1
2
+
1
2
=
1-
3
7
=
1
12
+
5
12
=
1
5
-
1
5
=
4
5
-
2
5
=
6-
2
7
=
3
4
+
2
4
=
9
8
-1=		 2+
2
3
=
直接写出得数．
35×
5
7
=
2
21
×
7
18
=
1
5
×
5
4
=
5
9
×
1
10
=
24×
5
6
=
3
7
×
1
6
=
1
10
×
5
6
=		 0×
83
11
=
7
18
×6=
1
2
×
2
3
=
2
5
×
5
6
=		 24×
5
8
=
直接写出得数
3-
3
5
=
5
6
×
3
5
=		 1+
5
6
=		 2-
1
2
=
4
7
-
3
28
=
9
8
-
4
7
-
3
7
=		 3÷4+
1
4
=		 0.12÷20%=
3
8
×4÷
3
8
×4=		 3.2+
1
10
-3.2+
1
10
=
（2010?南开区）直接写出得数．
3
5
×10=
3
8
+
1
4
=		 0.75+
3
4
=		 1.2×
5
6
-
5
6
=
7
9
+7=		 1÷
2
3
=		 0.6-
2
5
=
3
7
×
5
6
÷
3
7
=

违法和不良信息举报电话：027-86699610 举报邮箱：58377363@163.com

精英家教网