- 3.40 MB
- 2021-05-10 发布
加减混合运算
1
、速 算:
8
3
7
3 + 5 =
5
-
2 =
10
-
3 =
8
-
5 =
3
8
3
9
3 + 2 +3 =
10
-
5
-
2 =
3 + 2 +4 =
7
-
2
-
3 =
2
2
+
4
=
6
4
+
2
=
6
6
-
4
=
2
6
-
2
=
4
2、看图列式
△
你能提出什么问题?
现在还有几只天鹅?
4
+
3
-
2 =
5
你是怎么算出的?
4
+
3
-
2 =
7
5
5
从左往右计算
与连加、连减一样!
2
5
5
4
-
2
+
3 =
6
=
5
4
+
3
-
△
?
9
– 5 + = 9
8 – + 3= 7
2 + 4 – = 5
8 – 4 + = 6
3 +
–
3 = 5
2 + 5 + = 9
1
4
5
2
2
5
△
5
9
-
4
=
6
+
3
=
8
-
6
=
5
+
3
=
6
-
3
=
10
-
6
=
3
+
7
=
7
+
3
=
8
-
7
=
10
-
3
=
3
+
5
=
8
-
5
=
8
-
6
=
7
-
4
=
8
-
2
=
7
-
5
=
6
+
4
=
2
+
7
=
0
+
8
=
3
+
5
=
7
+
2
=
5
-
2
=
8
-
8
=
6
+
4
=
2
1
2
10
9
9
4
7
3
9
3
2
10
8
6
8
0
8
10
3
2
8
10
△
10
1
7
7
4
+
6
-
3=
8
-
5
+
4=
9
-
3
+
4=
2
+
7
-
8=
△
3、看看谁最棒
5
6
5
7
7
-
4
+
2=
6
-
1
+
2=
3
+
4
-
1=
6
+
3
-
4=
谢谢 再见!
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