Grade 1 - Lesson 23 - Introducing Addition Facts to 18

Grade 1 Math Worksheets – Lesson 23: Introducing Addition Facts to 18

Help your first grader build stronger addition fluency with Lesson 23: Introducing Addition Facts to 18 from the Grade 1 Math Worksheets workbook. This lesson helps students move beyond smaller sums and begin practicing addition facts with totals up to 18.

Designed for children ages 6–7, this lesson gives students clear, step-by-step practice with addition facts. Children use number sentences, visual models, counting strategies, and repeated practice to understand how numbers combine to make larger sums. This lesson supports both accuracy and early mental math confidence.

With 20 pages of focused practice, Lesson 23 helps students strengthen addition skills before moving into subtraction facts to 18, mixed addition and subtraction, word problems, and two-digit number work. The worksheets are simple, engaging, and useful for classroom learning, homeschooling, tutoring, or extra practice at home.

Perfect for:

Parents, teachers, homeschoolers, tutors, and first-grade students who need practice with addition facts up to 18.