Adding two-digit numbers 10 to 80 (Horizontal Questions - Full Page)

This basic Addition worksheet is designed to help kids practice adding two-digit numbers (10 through 80) with addition questions that change each time you visit. This math worksheet is printable and displays a full 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 ... 80+10
  • 10+11, 11+11, 12+11, 13+11, 14+11, 15+11 ... 80+11
  • 10+12, 11+12, 12+12, 13+12, 14+12, 15+12 ... 80+12
  • ...
  • 10+80, 11+80, 12+80, 13+80, 14+80, 15+80 ... 80+80
ANSWER KEY
18 + 31 =
 49
31 + 19 =
 50
36 + 17 =
 53
24 + 52 =
 76
63 + 74 =
 137
75 + 10 =
 85
66 + 30 =
 96
25 + 76 =
 101
20 + 44 =
 64
38 + 35 =
 73
34 + 51 =
 85
31 + 60 =
 91
59 + 56 =
 115
51 + 49 =
 100
29 + 27 =
 56
12 + 39 =
 51
75 + 15 =
 90
62 + 18 =
 80
37 + 57 =
 94
28 + 25 =
 53
80 + 76 =
 156
70 + 11 =
 81
66 + 27 =
 93
61 + 13 =
 74
45 + 72 =
 117
57 + 54 =
 111
30 + 62 =
 92
29 + 53 =
 82
79 + 12 =
 91
33 + 35 =
 68
75 + 26 =
 101
41 + 28 =
 69
76 + 19 =
 95
55 + 45 =
 100
73 + 78 =
 151
56 + 40 =
 96
73 + 59 =
 132
31 + 30 =
 61
68 + 70 =
 138
44 + 64 =
 108
49 + 66 =
 115
54 + 18 =
 72
76 + 53 =
 129
56 + 67 =
 123
13 + 33 =
 46
46 + 61 =
 107
24 + 16 =
 40
22 + 69 =
 91
45 + 67 =
 112
76 + 33 =
 109
13 + 39 =
 52
36 + 58 =
 94
36 + 39 =
 75
67 + 78 =
 145
20 + 18 =
 38
53 + 47 =
 100
30 + 65 =
 95
76 + 79 =
 155
69 + 63 =
 132
22 + 66 =
 88
46 + 16 =
 62
45 + 71 =
 116
67 + 13 =
 80
32 + 73 =
 105
75 + 65 =
 140
26 + 74 =
 100
24 + 42 =
 66
33 + 17 =
 50
11 + 49 =
 60
30 + 35 =
 65
69 + 62 =
 131
61 + 20 =
 81
69 + 22 =
 91
36 + 31 =
 67
64 + 67 =
 131
77 + 37 =
 114
61 + 42 =
 103
37 + 67 =
 104
78 + 68 =
 146
53 + 72 =
 125

 Check this box to display the answer key

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