Adding two-digit numbers 10 to 99 (Horizontal Questions - Half Page)

This basic Addition worksheet is designed to help kids practice adding two-digit numbers (10 through 99) 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 Addition 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+10, 11+10, 12+10, 13+10, 14+10, 15+10 ... 99+10
  • 10+11, 11+11, 12+11, 13+11, 14+11, 15+11 ... 99+11
  • 10+12, 11+12, 12+12, 13+12, 14+12, 15+12 ... 99+12
  • ...
  • 10+99, 11+99, 12+99, 13+99, 14+99, 15+99 ... 99+99
ANSWER KEY
98 + 46 =
 144
22 + 95 =
 117
36 + 67 =
 103
41 + 79 =
 120
50 + 91 =
 141
72 + 55 =
 127
44 + 52 =
 96
10 + 36 =
 46
33 + 95 =
 128
37 + 19 =
 56
91 + 12 =
 103
52 + 56 =
 108
62 + 64 =
 126
24 + 10 =
 34
77 + 54 =
 131
60 + 44 =
 104
61 + 47 =
 108
94 + 30 =
 124
45 + 97 =
 142
96 + 81 =
 177
72 + 24 =
 96
18 + 82 =
 100
99 + 83 =
 182
68 + 19 =
 87
48 + 73 =
 121
51 + 89 =
 140
18 + 75 =
 93
55 + 29 =
 84

 Check this box to display the answer key

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