1st GradeâšðĒ MathâšSubtraction
Subtraction Within 20
A parent's guide to teaching your first grader to subtract within 20 using counting back, making 10, and related addition facts.
$0.99
Paid Cozy Nest members can claim up to 5 Parent Teach-It Guides each month. View Plans
Preview
Your child is learning to subtract within 20 using several strategies: counting back, making 10, using doubles, and using related addition facts (fact families).
Purchase or claim this guide to unlock all 14 sections.