Grade 1 math worksheets
41 worksheets across 14 grade 1 Common Core standards. Every one comes at three levels — more support, on level, and a challenge — with a single answer key marking all three.
What the grade 1 standards cover
The grade 1 standards cover addition and subtraction within 20, and the beginning of place value.
- Operations & Algebraic Thinking 1.OA
- Word problems in every situation type — adding to, taking from, putting together and comparing — and adding three numbers at once. The commutative and associative properties used as strategies, subtraction read as an unknown addend, and counting on and counting back. Fluency within 10, strategies such as making ten for the rest of the way to 20, what the equal sign actually means, and equations with the unknown in any position.
- Number & Operations in Base Ten 1.NBT
- Counting to 120 from any starting number, and reading and writing those numerals. Two-digit numbers understood as tens and ones, and compared with the >, = and < signs. Adding within 100 — a two-digit number plus a one-digit number, or plus a multiple of ten — finding 10 more and 10 less in your head, and subtracting multiples of ten.
Free to download, no account
Ready-made and unmarked. Everything else on this page builds in your browser, free to preview.
Every grade 1 standard
14 standards · 41 worksheets
Operations & Algebraic Thinking 1.OA
Represent and solve problems involving addition and subtraction
1.OA.1Add and subtract within 20 to solve word problems involving add-to, take-from, put-together, take-apart, and compare situations, with unknowns in all positions7 sheets
1.OA.2Solve word problems adding three whole numbers whose sum is 20 or less1 sheet
Understand and apply properties of operations and the relationship between addition and subtraction
1.OA.3Apply commutative and associative properties as addition strategies2 sheets
1.OA.4Understand subtraction as an unknown-addend problem2 sheets
Add and subtract within 20
1.OA.5Relate counting to addition and subtraction (counting on / counting back)2 sheets
1.OA.6Add and subtract within 20; fluently add and subtract within 10. Strategies include making ten, decomposing to a ten, and using known equivalents8 sheets
Work with addition and subtraction equations
1.OA.7Understand the meaning of the equal sign; determine whether equations are true or false1 sheet
1.OA.8Determine the unknown whole number in an addition or subtraction equation with the unknown in any position4 sheets
Number & Operations in Base Ten 1.NBT
Extend the counting sequence
1.NBT.1Count to 120 starting at any number; read, write, and represent numerals2 sheets
Understand place value
1.NBT.2Understand two-digit numbers as tens and ones, including 10 as a bundle of ten ones and multiples of ten3 sheets
1.NBT.3Compare two two-digit numbers using >, =, < based on tens and ones1 sheet
Use place value understanding and properties of operations to add and subtract
1.NBT.4Add within 100: two-digit plus one-digit, and two-digit plus a multiple of 104 sheets
1.NBT.5Mentally find 10 more or 10 less than a two-digit number without counting3 sheets
1.NBT.6Subtract multiples of 10 from multiples of 10 in the range 10-90, with positive or zero differences1 sheet
Every sheet is tagged to the standard it teaches. Nothing printed on a worksheet names a grade, so a student working a year or two from their own gets a sheet that names the skill and nothing else.