Grade 1 Math Worksheets

Grade 1 is the fluency year for addition and subtraction within 20, and everything else on these sheets orbits that: unknown-addend equations that make the two operations one idea, tens and ones to 99, ten more and ten less, measuring in paper clips and reading a clock to the half hour.

Timed drills appear for the first time at this grade. Use them lightly — a timer is a way to see which facts are still being counted, not a competition — and lean on the missing-number sheets, which are where fact families are actually built.

Topics taught in grade 1

Addition

fact fluency within 20, three addends, and two-digit plus one-digit numbers.

6 worksheets · 3 sets each

Subtraction

facts within 20, unknown-addend equations, and subtracting multiples of ten.

6 worksheets · 3 sets each

Mixed Operations

addition and subtraction within 20 on the same page, and fact families.

5 worksheets · 3 sets each

Place Value

tens and ones to 99, ten more and ten less, and comparing two-digit numbers.

5 worksheets · 3 sets each

Measurement

measuring length in non-standard units, comparing lengths, and adding lengths within 20.

5 worksheets · 3 sets each

Time & Money

reading a clock to the half hour, counting like coins, and two kinds of coins together.

5 worksheets · 3 sets each

Grade 1 on this site: six topics — addition, subtraction, mixed operations, place value, measurement, and time and money — in 32 worksheets, each in three versions, for 2,634 problems with keys.

Addition: fact fluency within 20, three addends, and two-digit plus one-digit numbers. Subtraction: facts within 20, unknown-addend equations, and subtracting multiples of ten. Mixed Operations: addition and subtraction within 20 on the same page, and fact families. Place Value: tens and ones to 99, ten more and ten less, and comparing two-digit numbers. Measurement: measuring length in non-standard units, comparing lengths, and adding lengths within 20. Time & Money: reading a clock to the half hour, counting like coins, and two kinds of coins together.

To see the level at a glance: the addition drill has 18 problems (problem 7: "8 + 18"), the subtraction drill has 22 problems (problem 8: "90 - 70"), the mixed operations drill has 20 problems (problem 7: "4 + 13"), the place value drill has 20 problems (problem 7: "10 more than 14"), the measurement drill has 24 problems (problem 9: "A toy car measures 9 paper clips long. Each paper clip is 1…"), and the time and money drill has 24 problems (problem 10: "10 dimes").