Subtract within 20 (no borrowing)

Use a fact family triangle to show your child that 5, 3, and 8 are related: 5 + 3 = 8, 3 + 5 = 8, 8 - 3 = 5, and 8 - 5 = 3. When students see subtraction as the reverse of addition, they can use the addition facts they already know to solve subtraction problems without starting from scratch. Alternate between timed practice (30 problems in 3 minutes builds fluency) and untimed, reflective work ("how did you figure that out?") to develop both speed and strategy.

These subtraction facts worksheets for 1st grade build the automaticity and fluency that children need to move comfortably into 2nd grade math. Students practice subtraction facts within 20 through drills, fact families, ten frame activities, and missing number problems, developing both speed and a deep understanding of how subtraction works. Our subtraction worksheets for 1st grade go beyond simple memorization by including multiple problem formats that push students to think flexibly about number relationships. Mastering subtraction facts frees up working memory for the more complex math strategies ahead.

"Subtract within 20 (no borrowing) - Dragon" is written for 1st Grade (Ages 6-7), and it covers Common Core 1.OA.A.1. If your little one is a year younger but already steady on subtraction, the page still works. You may just need to read the instructions out loud. And if they are older and subtraction facts never quite stuck, this is a short review rather than busywork.

Yes, both. We made it for 1st Grade subtraction, and the page works the same whether it lands on a kitchen table or a center rotation. At home, most families go through it together and talk the answers out loud, and that talking is where most of the learning happens with subtraction facts. In class it runs well as independent work while you pull a small group. Print one copy or thirty, whichever the day needs.

1st graders focus on subtraction facts within 20, with CCSS specifically requiring fluency (automatic recall) for facts within 10 by end of 1st grade.

Research supports short (5-10 minute) daily practice sessions, which are more effective than longer, less frequent sessions for building fact fluency.

Fluency means solving facts accurately and efficiently (possibly with a strategy); automaticity means instant recall without needing to count or strategize.

First graders should subtract within 20 using strategies like counting back, using related addition facts, and making ten (CCSS 1.OA.C.6). They should also understand the relationship between addition and subtraction and solve comparison word problems.

Use number lines and hundred charts to make subtraction visual. Practice fact families (e.g., 3+4=7, 7-4=3) to show how addition and subtraction are connected. Start with subtraction within 10 before moving to larger numbers. Consistent daily practice with worksheets builds confidence.