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1st Grade
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Missing Addends within 20
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Sheet 12
Missing Addends within 20 — Worksheet 12
Name:
Date:
Missing Addends within 20
What number is missing?
1.
1 +
= 13
2.
15 +
= 16
3.
1 +
= 11
4.
11 +
= 17
5.
12 +
= 16
6.
9 +
= 10
7.
7 +
= 13
8.
12 +
= 18
9.
12 +
= 15
10.
5 +
= 20
11.
11 +
= 13
12.
6 +
= 14
13.
2 +
= 12
14.
1 +
= 14
15.
4 +
= 12
16.
3 +
= 13
17.
10 +
= 16
18.
10 +
= 14
19.
8 +
= 16
20.
2 +
= 11
12
1
10
6
4
1
6
6
3
15
2
8
10
13
8
10
6
4
8
9
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1st Grade · Sheet #12