Adding two-digit numbers 10 to 90 (Horizontal Questions - Half Page x 2)

This basic Addition worksheet is designed to help kids practice adding two-digit 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 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 ... 90+10
  • 10+11, 11+11, 12+11, 13+11, 14+11, 15+11 ... 90+11
  • 10+12, 11+12, 12+12, 13+12, 14+12, 15+12 ... 90+12
  • ...
  • 10+90, 11+90, 12+90, 13+90, 14+90, 15+90 ... 90+90
ANSWER KEY
39 + 88 =
 127
24 + 46 =
 70
60 + 29 =
 89
54 + 61 =
 115
65 + 83 =
 148
16 + 35 =
 51
80 + 65 =
 145
32 + 78 =
 110
70 + 14 =
 84
17 + 68 =
 85
20 + 48 =
 68
89 + 20 =
 109
35 + 20 =
 55
71 + 60 =
 131
50 + 72 =
 122
25 + 27 =
 52
63 + 34 =
 97
52 + 11 =
 63
55 + 43 =
 98
76 + 49 =
 125
25 + 53 =
 78
70 + 51 =
 121
34 + 90 =
 124
78 + 59 =
 137
21 + 56 =
 77
65 + 71 =
 136
84 + 24 =
 108
89 + 30 =
 119
78 + 79 =
 157
61 + 39 =
 100
18 + 87 =
 105
37 + 18 =
 55
57 + 25 =
 82
48 + 84 =
 132
59 + 27 =
 86
43 + 32 =
 75
54 + 73 =
 127
31 + 54 =
 85
71 + 88 =
 159
11 + 14 =
 25
35 + 39 =
 74
87 + 18 =
 105
45 + 63 =
 108
39 + 36 =
 75
61 + 54 =
 115
83 + 50 =
 133
48 + 54 =
 102
72 + 79 =
 151
36 + 32 =
 68
44 + 48 =
 92
69 + 71 =
 140
66 + 68 =
 134
32 + 75 =
 107
58 + 57 =
 115
89 + 46 =
 135
22 + 38 =
 60

 Check this box to display the answer key

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