Addition and subtraction word problems
PROCEDURALSolve addition and subtraction word problems within 10 using objects or drawings
Mastery Evidence
- Solve 'There are 6 apples, 2 are eaten, how many left?' using counters
- Solve 'add to' and 'take from' result-unknown problems
- Solve 'put together/take apart' problems with total unknown
Assessment Prompt
“If you say 'There are 7 birds on a fence and 3 fly away — how many are left?', can [child] work it out using their fingers, counters, or a quick drawing?”
Curriculum Standards2 alignments
K.OA.2Common Core State Standards for MathematicsSolve addition and subtraction word problems, and add and subtract within 10, e.g., by using objects or drawings to represent the problem.
Maths/Y1/AS/4The national curriculum in EnglandSolve one-step problems that involve addition and subtraction, using concrete objects and pictorial representations, and missing number problems such as 7 = [ ] – 9.
Prerequisites1
- Representing Addition and SubtractionhardAges 4—6
Show full prerequisite tree
- Representing Addition and Subtraction hard
Solving word problems within 10 requires ability to represent the operations with objects/drawings
- Addition as combining or putting together two hard
Representing addition with objects/drawings requires understanding what addition means
- How Many in Total? hard
Understanding addition as combining groups requires knowing numbers represent quantities (cardinality)
- One-to-one counting hard
Cardinality principle builds on one-to-one correspondence — you must count correctly to know the last number tells 'how many'
- Subtraction as taking away or separating hard
Representing subtraction with objects/drawings requires understanding what subtraction means
- How Many in Total? hard
Understanding subtraction as taking away requires knowing numbers represent quantities (cardinality)
- One-to-one counting hard
Cardinality principle builds on one-to-one correspondence — you must count correctly to know the last number tells 'how many'
Unlocks3
- Using objects to model real problemssoftAges 5—6
- Real-World to Maths ConnectionssoftAges 5—6
- Early Word ProblemssoftAges 5—7