Subtraction as taking away or separating
Understand subtraction as taking away or separating from a group to find how many remain
Typical age: 4–6 years
“If your child has 9 biscuits and eats 3, do they understand that subtracting means taking some away — and can they tell you 6 biscuits are left?”
0 / 3 mastered
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- Money Addition & SubtractionREQUIRED
Giving change involves subtraction
- Reading +, −, and = symbolsREQUIRED
Reading/writing the − symbol requires understanding what subtraction means
- Finding a missing number in additionREQUIRED
Subtraction as unknown-addend reframes subtraction conceptually
- Fluent adding and subtracting within 5REQUIRED
Fluency with subtraction within 5 requires understanding subtraction as taking away
- Subtracting multiples of 10REQUIRED
Subtracting multiples of 10 requires understanding subtraction
- Division as equal sharingREQUIRED
Division as equal sharing/grouping requires understanding subtraction as taking away/separating
- Representing Addition and SubtractionREQUIRED
Representing subtraction with objects/drawings requires understanding what subtraction means
- Addition and subtraction strategiesREQUIRED
Counting back as a subtraction strategy requires understanding subtraction