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
75 + 76 =
 151
13 + 14 =
 27
49 + 48 =
 97
22 + 21 =
 43
45 + 46 =
 91
85 + 84 =
 169
79 + 80 =
 159
18 + 17 =
 35
11 + 10 =
 21
45 + 46 =
 91
20 + 19 =
 39
32 + 33 =
 65
30 + 29 =
 59
42 + 43 =
 85
22 + 23 =
 45
66 + 65 =
 131
58 + 59 =
 117
36 + 35 =
 71
60 + 59 =
 119
63 + 64 =
 127
40 + 41 =
 81
66 + 65 =
 131
56 + 55 =
 111
67 + 68 =
 135
45 + 44 =
 89
53 + 54 =
 107
65 + 66 =
 131
72 + 71 =
 143
26 + 25 =
 51
73 + 74 =
 147
56 + 55 =
 111
72 + 73 =
 145
30 + 31 =
 61
60 + 59 =
 119
88 + 89 =
 177
66 + 67 =
 133
80 + 79 =
 159
89 + 90 =
 179
60 + 61 =
 121
27 + 26 =
 53
84 + 83 =
 167
37 + 36 =
 73
45 + 46 =
 91
44 + 45 =
 89
69 + 70 =
 139
49 + 50 =
 99
79 + 78 =
 157
13 + 14 =
 27
76 + 75 =
 151
46 + 47 =
 93
11 + 10 =
 21
34 + 33 =
 67
34 + 35 =
 69
87 + 86 =
 173
69 + 70 =
 139
10 + 11 =
 21

 Check this box to display the answer key

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