Adding Doubles+1, 10 to 70 (Horizontal Questions - Half Page x 2)

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 two half page math sheets 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
37 + 36 =
 73
24 + 25 =
 49
46 + 45 =
 91
56 + 57 =
 113
42 + 43 =
 85
33 + 34 =
 67
66 + 65 =
 131
64 + 63 =
 127
31 + 32 =
 63
50 + 49 =
 99
36 + 37 =
 73
68 + 67 =
 135
17 + 16 =
 33
43 + 44 =
 87
46 + 47 =
 93
35 + 34 =
 69
41 + 40 =
 81
22 + 21 =
 43
20 + 21 =
 41
39 + 40 =
 79
11 + 12 =
 23
58 + 57 =
 115
24 + 23 =
 47
52 + 53 =
 105
54 + 55 =
 109
56 + 57 =
 113
60 + 59 =
 119
32 + 31 =
 63
23 + 24 =
 47
13 + 12 =
 25
31 + 32 =
 63
22 + 21 =
 43
15 + 16 =
 31
61 + 62 =
 123
18 + 17 =
 35
46 + 45 =
 91
21 + 20 =
 41
57 + 58 =
 115
69 + 70 =
 139
20 + 19 =
 39
31 + 30 =
 61
70 + 69 =
 139
21 + 22 =
 43
58 + 59 =
 117
58 + 59 =
 117
58 + 57 =
 115
11 + 10 =
 21
68 + 69 =
 137
48 + 49 =
 97
65 + 66 =
 131
16 + 15 =
 31
27 + 26 =
 53
67 + 66 =
 133
13 + 12 =
 25
39 + 40 =
 79
48 + 47 =
 95

 Check this box to display the answer key

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