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Overview
Grade 1
Number
8. Demonstrate an understanding of addition of numbers with answers to 20 and their corresponding subtraction facts, concretely, pictorially and symbolically
8.11 Completing subtraction statements up to 20
Completing subtraction statements up to 20
What You'll Learn
Identify the missing number in subtraction equations up to 20
Apply inverse operations to solve for unknown values in subtraction
Recognize subtraction patterns within numbers 0 to 20
Determine whether the missing number is the minuend, subtrahend, or difference
What You'll Practice
1
Filling in missing minuends in subtraction sentences
2
Finding unknown subtrahends in equations
3
Solving for missing differences in subtraction problems
Why This Matters
Completing subtraction statements builds your number sense and prepares you for solving algebraic equations later. This skill strengthens mental math abilities you'll use daily, from calculating change to measuring ingredients.
This Unit Includes
Practice exercises
Skills
Subtraction
Missing Numbers
Inverse Operations
Number Sense
Mental Math
PEI Curriculum Aligned