Two-Digit Addition
Grade 1 Math Worksheet

NameDate
Write the sum on the line.
11 + 3 =
60 + 40 =
33 + 4 =
2 + 10 =
50 + 50 =
22 + 4 =
23 + 4 =
80 + 8 =
40 + 20 =
10 + 7 =
10 + 40 =
90 + 5 =
70 + 10 =
51 + 2 =
41 + 6 =
40 + 6 =
Grade 1 Math Worksheet

Write the sum on the line.
11 + 3 =
60 + 40 =
33 + 4 =
2 + 10 =
50 + 50 =
22 + 4 =
23 + 4 =
80 + 8 =
40 + 20 =
10 + 7 =
10 + 40 =
90 + 5 =
70 + 10 =
51 + 2 =
41 + 6 =
40 + 6 =
Answer Key - Grade 1 Math Worksheet

Write the sum on the line.
11 + 3 = 14
60 + 40 = 100
33 + 4 = 37
2 + 10 = 12
50 + 50 = 100
22 + 4 = 26
23 + 4 = 27
80 + 8 = 88
40 + 20 = 60
10 + 7 = 17
10 + 40 = 50
90 + 5 = 95
70 + 10 = 80
51 + 2 = 53
41 + 6 = 47
40 + 6 = 46