This adding and subtracting within 20 worksheet gives first graders mixed addition and subtraction fact practice with a helpful number line. Includes a complete answer key for quick, no-prep math review.
This adding and subtracting to 20 worksheet gives 1st graders ten mixed addition and subtraction equations to solve within 20. Answer key included — perfect for quick, no-prep math fact practice at home or school.
This Adding Word Problems with 3 Numbers Worksheet helps 1st graders add three single-digit numbers using fun story problems about ducks, apples, and more. Includes a complete answer key for quick, no-prep addition practice.
This Adding 3 Whole Numbers Within 20 Worksheet gives 1st graders twelve problems to practice adding three single-digit numbers for sums up to 20. Includes a complete answer key for fast, no-prep addition practice.
This Ten More Ten Less Worksheet gives 1st graders eight quick problems to find ten more and ten less than a two-digit number. Includes an answer key for fast, no-prep place value practice.
A first-grade commutative and associative properties worksheet where students solve ten addition problems by adding the numbers in any order or group. Includes an answer key and a handy reminder box for no-prep math practice.
This counting on to add worksheet helps 1st graders start from the bigger number and count forward on a number line to twenty. An answer key is included, so checking work takes seconds.
This adding tens and ones worksheet helps 1st graders build two-digit numbers with base ten blocks and column addition. Includes an answer key for quick, no-prep place value practice at home or school.
This finding the missing number worksheet gives first graders focused practice solving for the unknown number in addition and subtraction equations within 20. Includes an answer key — a quick, no-prep way to build number sense and fact fluency.
This Adding In Any Order Worksheet helps 1st graders see that 3 + 4 and 4 + 3 always match, using picture groups first and quick fact flips second. Answer key included, so practice takes minutes to check.
This Word Problems Adding 3 Numbers Worksheet gives 1st graders five short stories to solve by writing and adding a three-number equation. Answer key included, so practice with sums to 20 stays quick and stress-free.
This writing addition sentences worksheet gives 1st graders six picture-friendly word problems to solve by filling in each addition number sentence. Answer key included — perfect for no-prep addition practice at home or in class.
This finding 10 more 10 less activity helps 1st and 2nd grade children use a hundred chart to find 10 more and 10 less. Practice page and answer key included.
This Make It True Missing Number Addition Subtraction Worksheet gives 1st graders ten equations to complete by filling in the missing number. Answer key included for fast, no-prep practice.
This word problem practice worksheet gives 1st graders five real-life addition and subtraction problems to solve within 20. An answer key is included, so checking work takes seconds.
A basic word problems worksheet for 1st Grade, with four illustrated stories that ask children to add or subtract within 20 and write the answer with its unit. Answer key included for fast, no-prep problem-solving practice.
This subtraction as an unknown addend activity helps K through 2nd grade students solve subtraction within 20 by matching each fact to its addition fact card. Answer key included.
Using the Adding 1 Song (Lyric Mjusic Video), students sing and practice adding 1 with all addition facts 1-15. Your kids will learn how to add 1.
This adding and decomposing to 20 worksheet gives 1st graders double ten frames for building teen sums and reading them back as a ten and some ones. Answer key included, so practice checks itself in seconds.
This Addition True or False Worksheet asks first graders to decide whether each number sentence is true, then fill in blanks to balance three equations. Answer key included, so checking work takes seconds.
Count on, make ten, and add it up!
First grade is the big addition year. Kids add within 20 using smart strategies instead of counting every single dot: counting on from the bigger number, making ten (8 + 5 = 8 + 2 + 3 = 13), and using doubles they already know. They learn that order does not matter (3 + 9 = 9 + 3), add three numbers, find missing numbers like 6 + ? = 11, and solve story problems. They also add tens and ones within 100. The click moment is when the equal sign stops meaning "the answer goes here" and starts meaning "the same as".
Strategies first, speed later. These moves help 1st graders add with understanding and then with confidence.
Give kids a ten frame and two colors of counters. For 7 + 5, they fill the frame with 7 red, slide 3 yellow in to finish the ten, and see 2 left over: 10 + 2. After a week of building it, kids start doing it in their heads.
Why it works: going from real objects to pictures to symbols is a core recommendation of the U.S. Department of Education's elementary math guide.
Try it withAdding to Ten with Fluency WorksheetWorksheetsOpen it →Use a short addition song like adding 1 as a warm-up or a transition. Kids hear the pattern again and again without a worksheet in sight. Songs are especially great for the plus 1 and plus 2 facts that become automatic first.
Why it works: a catchy, repeating tune gives the brain a hook to hang words on, so sung text is remembered better (Wallace, 1994).
Try it withAdding 1 Song (Lyric Music Video)SongsOpen it →Instead of a long timed test, give kids five mixed facts at the start of each day and talk about one strategy they used. A tiny daily dose builds fluency within 20 by the end of the year without the stress.
Why it works: short practice spread over several days beats one long session, according to a large review of learning research (Dunlosky and colleagues, 2013).
Try it withAdding and Subtracting Within 20 WorksheetWorksheetsOpen it →Dice, cards and a little bit of silliness. That is all you need.
WorksheetsRoll three dice and add them. Look for a pair that makes ten first, then add the last number!
Open Adding 3 Whole Numbers within 20 Worksheet →
WorksheetsHold up equations like 4 + 5 = 10. Kids stand if it is true and sit if it is false, then fix the false ones.
Open Addition True or False Worksheet →
ActivitiesHop around a hundreds chart by tens and watch the tens digit change while the ones digit stays.
Open Finding 10 More 10 Less Activity →Teacher favorites right now: Adding and Subtracting Within 20 Worksheet, Adding and Subtracting to 20 Worksheet and Adding Word Problems with 3 Numbers Worksheet.
By the end of 1st grade, most kids add within 20 and know facts within 10 by heart. They also add a two-digit number and a one-digit number or a multiple of ten within 100.
Kids break apart one number to fill up a ten. For 9 + 4, they move 1 from the 4 to the 9 to make 10, then add the 3 left over to get 13.
Fingers are fine at first. Teach counting on from the bigger number, then doubles and make-ten facts, and practice a few facts a day. Fingers fade as the facts stick.
It is an equation with a blank in the middle, like 5 + ? = 12. It helps 1st graders see how addition and subtraction are connected.
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