Adding And Subtracting Within 20 Worksheet

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Adding and Subtracting within 20
Name:
Solve each problem.
A n s w e r s
1)
2)
3)
4)
13
19
14
15
15
1.
+
2
+
1
+
3
+
2
15
20
17
17
20
2.
17
3.
17
4.
5)
6)
7)
8)
10
13
12
6
20
5.
+
10
+
1
+
5
+
4
20
14
17
10
14
6.
17
7.
10
8.
9)
10)
11)
12)
13
11
18
11
16
9.
+
3
+
5
-
1
-
4
16
16
17
7
16
10.
17
11.
7
12.
13)
14)
15)
16)
20
16
9
19
14
13.
-
6
-
7
-
3
-
1
14
9
6
18
9
14.
6
15.
18
16.
17)
18)
19)
20)
17
20
13
20
11
17.
-
6
-
3
-
2
-
5
11
17
11
15
17
18.
11
19.
15
20.
1-10 95 90 85 80 75 70 65 60 55 50
Math
4
11-20 45 40 35 30 25 20 15 10 5
0

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