Adding Doubles Plus 1 Worksheet With Answers Page 2
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20Adding Doubles Plus 1 (A) Answers
Use an adding doubles strategy to find each sum
Example: 5 + 6 = 5 + 5 + 1 = 10 + 1 = 11
0 + 1 =
9 + 10 =
6 + 7 =
0 + 0 + 1 = 1
9 + 9 + 1 = 19
6 + 6 + 1 = 13
0 + 1 = 1
18 + 1 = 19
12 + 1 = 13
1 + 2 =
7 + 8 =
0 + 1 =
1 + 1 + 1 = 3
7 + 7 + 1 = 15
0 + 0 + 1 = 1
2 + 1 = 3
14 + 1 = 15
0 + 1 = 1
9 + 10 =
2 + 3 =
5 + 6 =
9 + 9 + 1 = 19
2 + 2 + 1 = 5
5 + 5 + 1 = 11
18 + 1 = 19
4 + 1 = 5
10 + 1 = 11
4 + 5 =
1 + 2 =
1 + 2 =
4 + 4 + 1 = 9
1 + 1 + 1 = 3
1 + 1 + 1 = 3
8 + 1 = 9
2 + 1 = 3
2 + 1 = 3
3 + 4 =
8 + 9 =
7 + 8 =
3 + 3 + 1 = 7
8 + 8 + 1 = 17
7 + 7 + 1 = 15
6 + 1 = 7
16 + 1 = 17
14 + 1 = 15
2 + 3 =
4 + 5 =
9 + 10 =
2 + 2 + 1 = 5
4 + 4 + 1 = 9
9 + 9 + 1 = 19
4 + 1 = 5
8 + 1 = 9
18 + 1 = 19
7 + 8 =
6 + 7 =
3 + 4 =
7 + 7 + 1 = 15
6 + 6 + 1 = 13
3 + 3 + 1 = 7
14 + 1 = 15
12 + 1 = 13
6 + 1 = 7
8 + 9 =
5 + 6 =
8 + 9 =
8 + 8 + 1 = 17
5 + 5 + 1 = 11
8 + 8 + 1 = 17
16 + 1 = 17
10 + 1 = 11
16 + 1 = 17
5 + 6 =
0 + 1 =
4 + 5 =
5 + 5 + 1 = 11
0 + 0 + 1 = 1
4 + 4 + 1 = 9
10 + 1 = 11
0 + 1 = 1
8 + 1 = 9
6 + 7 =
3 + 4 =
2 + 3 =
6 + 6 + 1 = 13
3 + 3 + 1 = 7
2 + 2 + 1 = 5
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