MyMathKidK-8 Curriculum
Common Core: 1.OA
Answer Key
Grade 1 • number-bonds • Easy

Number Bonds 11-15 (Set C)

Additional bonds 11-15 practice

10 problems

1.
?112
ans
1 + 12 = ?
2.
1311?
ans
11 + ? = 13
3.
139?
ans
9 + ? = 13
4.
14?7
ans
? + 7 = 14
5.
?59
ans
5 + 9 = ?
6.
?312
ans
3 + 12 = ?
7.
151?
ans
1 + ? = 15
8.
5?1
ans
? + 1 = 5
9.
5?2
ans
? + 2 = 5
10.
?32
ans
3 + 2 = ?
Math Worksheets for Kids • Worksheet #nb-11-15-c