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