Adding Doubles+1, 10 to 70 (Horizontal Questions - Full Page)

This basic Adding Doubles plus one worksheet is designed to help kids practice adding doubles+1, for numbers 10 through 70 with addition questions that change each time you visit. This math worksheet is printable and displays a full page math sheet with Horizontal Addition questions.

With this math sheet generator, you can easily create Adding Doubles+1 worksheets that are never the same and always different, providing you with an unlimited supply of math sheets to use in the classroom or at home.

Each math sheet also has an optional answer key checkbox that you can select, if you wish to print an answer key to go along with your math worksheet. And there are six different question styles to choose from, as listed below.

Possible Questions:

The possible addition questions on this math worksheet are:

  • 10+11, 11+12, 12+13, 13+14, 14+15, 15+16, ... 69+70
  • 11+10, 12+11, 13+12, 14+13, 15+14, 16+15, ... 70+69
ANSWER KEY
29 + 30 =
 59
49 + 50 =
 99
14 + 13 =
 27
34 + 35 =
 69
13 + 12 =
 25
26 + 27 =
 53
52 + 53 =
 105
69 + 68 =
 137
17 + 18 =
 35
34 + 33 =
 67
39 + 38 =
 77
62 + 63 =
 125
47 + 46 =
 93
13 + 14 =
 27
24 + 23 =
 47
23 + 22 =
 45
60 + 59 =
 119
48 + 49 =
 97
18 + 19 =
 37
22 + 21 =
 43
26 + 27 =
 53
57 + 56 =
 113
28 + 27 =
 55
52 + 53 =
 105
61 + 62 =
 123
20 + 21 =
 41
58 + 57 =
 115
69 + 68 =
 137
38 + 37 =
 75
37 + 36 =
 73
22 + 23 =
 45
15 + 14 =
 29
42 + 43 =
 85
44 + 45 =
 89
61 + 60 =
 121
56 + 57 =
 113
12 + 13 =
 25
21 + 22 =
 43
31 + 30 =
 61
60 + 61 =
 121
27 + 26 =
 53
13 + 12 =
 25
18 + 19 =
 37
36 + 35 =
 71
62 + 61 =
 123
45 + 44 =
 89
30 + 31 =
 61
51 + 52 =
 103
26 + 27 =
 53
39 + 40 =
 79
53 + 52 =
 105
24 + 25 =
 49
63 + 64 =
 127
61 + 62 =
 123
42 + 41 =
 83
24 + 23 =
 47
31 + 30 =
 61
29 + 28 =
 57
47 + 48 =
 95
11 + 10 =
 21
64 + 65 =
 129
22 + 21 =
 43
34 + 33 =
 67
69 + 70 =
 139
14 + 15 =
 29
67 + 68 =
 135
16 + 15 =
 31
43 + 44 =
 87
39 + 38 =
 77
31 + 32 =
 63
51 + 52 =
 103
25 + 24 =
 49
14 + 15 =
 29
20 + 19 =
 39
11 + 12 =
 23
57 + 58 =
 115
62 + 63 =
 125
52 + 51 =
 103
38 + 37 =
 75
36 + 37 =
 73

 Check this box to display the answer key

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