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 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.
Find the missing number in equations within 20 with this adding and subtracting unknown numbers activity for 1st and 2nd grade: matching cards, a recording sheet and practice, answer key included.
This compose and decompose numbers 11-19 activity has kindergarten and 1st grade children build teen numbers as ten and ones with ten-frames, counters and matching cards. Answer key included.
While using our True or False Equations Activity, students sort each popcorn equation card under the true or false popcorn containers.
This decomposing a ten frame activity helps kindergarten to 2nd grade students match ten frames to facts that make 10, with a practice page and answer key included.
Using Commutative Property of Addition Activity, studentsmatch the popcorn cards to the matching popcorn container to show examples of the property.
This doubles addition activity has Kindergarten to 2nd Grade children match rocket fact cards to planet sum cards, with a dot practice page and an answer key included.
Use this single digit addition word problem activity to help kindergarten and 1st grade students count two picture groups and write the number sentence on 12 self-checking task cards. Answer key included.
This missing number addition and subtraction activity has K-2nd grade students match watermelon equation cards to their answers within 10 and 20. Answer key included for fun, hands-on fact practice.
This missing number addition activity has children draw watermelon slices to find the unknown addend in 18 problems within 10. Made for kindergarten and 1st grade, with a practice page and answer key included.
This Sweet Summer Treats money addition activity has 1st and 2nd grade students count coins and match them to treat prices, then add two prices. A practice page and answer key are included.
Using A Dime A Dozen Counting Dimes Activity, students practice counting dimes amount by playing a "Go Fish" inspired game.
This snickel-doodles counting nickels activity has 1st-2nd grade students count cookie nickels by fives and record the cents, with a practice page and answer key included for strong money skills.
This adding three numbers activity has 1st and 2nd grade students find a make-ten or a double, then match pumpkin problem cards to wagon sum cards. Answer key included.
Using Plenty O' Pennies Counting Pennies Activity, students practice counting pennies to build their coin counting skills.
This ice cream addition sums of 5-10 activity has kindergarten and 1st grade students stack addition scoops on the cone with the matching sum. Answer key included.
Using March Madness Basketball Addition Activity, students compete in March Madness by playing rounds of addition basketball and scoring points for their team!
This 1.OA.2 common core activity has 1st and 2nd Grade children solve three-addend story problems and match each story card to its sum card. Story log, practice page and answer key included.
This single digit addition activity for 1st and 2nd grade uses life ring number cards and a Ship's Log to practice sums to 18, with a practice page and answer key included.
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: words set to a repeating melody are easier to recall than the same words spoken (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: spreading practice out over days is one of the two most effective study methods in a major research review (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: Finding 10 More 10 Less Activity, Subtraction as an Unknown Addend Activity and Adding and Subtracting Unknown Numbers Activity.
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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