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