Adding Doubles+1, 10 to 100 (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 100 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, ... 99+100
  • 11+10, 12+11, 13+12, 14+13, 15+14, 16+15, ... 100+99
ANSWER KEY
37 + 36 =
 73
63 + 64 =
 127
99 + 100 =
 199
37 + 38 =
 75
52 + 51 =
 103
36 + 35 =
 71
76 + 77 =
 153
89 + 88 =
 177
33 + 32 =
 65
85 + 84 =
 169
97 + 98 =
 195
45 + 46 =
 91
94 + 93 =
 187
76 + 75 =
 151
95 + 96 =
 191
92 + 93 =
 185
20 + 19 =
 39
47 + 46 =
 93
74 + 73 =
 147
18 + 19 =
 37
90 + 91 =
 181
54 + 55 =
 109
82 + 83 =
 165
69 + 68 =
 137
35 + 34 =
 69
37 + 36 =
 73
91 + 92 =
 183
66 + 67 =
 133
88 + 87 =
 175
19 + 18 =
 37
25 + 26 =
 51
26 + 27 =
 53
12 + 11 =
 23
39 + 38 =
 77
69 + 68 =
 137
12 + 13 =
 25
20 + 19 =
 39
63 + 64 =
 127
45 + 44 =
 89
86 + 87 =
 173
92 + 91 =
 183
25 + 26 =
 51

 Check this box to display the answer key

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