Grade 1 · Math · Subtraction
Grade 1 Subtraction Within 20 Worksheet
Build subtraction fluency with numbers through 20.
Subtraction Within 20
Grade 1 · On-level practice · 14 questions · Version PG-3N9-IB6W
1.
16 - 12 =
2.
10 - 10 =
3.
10 - 2 =
4.
9 - 3 =
5.
1 - 1 =
6.
20 - 2 =
7.
18 - 18 =
8.
4 - 3 =
9.
12 - 7 =
10.
6 - 5 =
11.
12 - 6 =
12.
18 - 6 =
13.
13 - 6 =
14.
3 - 1 =
How to use this skill
Build subtraction fluency with numbers through 20.
Worked example
16 - 7 = 9. Break 7 into 6 and 1: 16 - 6 - 1 = 9.
Common mistake
Switching the order of the numbers because subtraction is not commutative.
Helpful hint
Count back to 10, then subtract what remains.
More free printable versions
Choose a difficulty and print one of twenty reproducible versions. Each page contains a real worksheet preview, answers, teaching notes, and its own permanent link.