Adding Doubles+1, 10 to 90 (Horizontal Questions - Half Page)

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 a half 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, ... 89+90
  • 11+10, 12+11, 13+12, 14+13, 15+14, 16+15, ... 90+89
ANSWER KEY
45 + 46 =
 91
22 + 23 =
 45
47 + 46 =
 93
89 + 90 =
 179
79 + 80 =
 159
53 + 52 =
 105
16 + 15 =
 31
31 + 32 =
 63
74 + 73 =
 147
18 + 19 =
 37
12 + 13 =
 25
38 + 37 =
 75
76 + 75 =
 151
77 + 76 =
 153
64 + 65 =
 129
37 + 36 =
 73
53 + 54 =
 107
40 + 41 =
 81
34 + 33 =
 67
20 + 21 =
 41
61 + 60 =
 121
30 + 31 =
 61
74 + 73 =
 147
63 + 64 =
 127
83 + 82 =
 165
21 + 20 =
 41
16 + 17 =
 33
32 + 31 =
 63

 Check this box to display the answer key

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