Adding Doubles+1, 10 to 90 (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 90 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, ... 89+90
  • 11+10, 12+11, 13+12, 14+13, 15+14, 16+15, ... 90+89
ANSWER KEY
84 + 83 =
 167
42 + 41 =
 83
25 + 26 =
 51
81 + 80 =
 161
29 + 28 =
 57
19 + 18 =
 37
79 + 80 =
 159
46 + 45 =
 91
88 + 89 =
 177
59 + 60 =
 119
66 + 65 =
 131
14 + 15 =
 29
47 + 46 =
 93
11 + 12 =
 23
77 + 78 =
 155
88 + 87 =
 175
16 + 17 =
 33
14 + 13 =
 27
21 + 20 =
 41
38 + 39 =
 77
36 + 37 =
 73
60 + 61 =
 121
30 + 29 =
 59
77 + 76 =
 153
59 + 58 =
 117
71 + 70 =
 141
57 + 58 =
 115
21 + 22 =
 43
24 + 25 =
 49
82 + 81 =
 163
64 + 63 =
 127
78 + 79 =
 157
79 + 78 =
 157
57 + 56 =
 113
40 + 41 =
 81
49 + 48 =
 97
48 + 49 =
 97
75 + 76 =
 151
31 + 30 =
 61
65 + 64 =
 129
30 + 29 =
 59
17 + 16 =
 33
55 + 56 =
 111
78 + 79 =
 157
46 + 45 =
 91
71 + 72 =
 143
66 + 65 =
 131
21 + 20 =
 41
44 + 45 =
 89
60 + 59 =
 119
58 + 59 =
 117
71 + 70 =
 141
35 + 34 =
 69
17 + 16 =
 33
50 + 51 =
 101
11 + 12 =
 23

 Check this box to display the answer key

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