Missing-number equations
Find the missing number that makes an equation true.
Taught in Primary 4 in Nigeria (NERDC), Year 4 in United Kingdom (National Curriculum), Grade 4 in Canada (Ontario).
Nigeria (NERDC)
Primary 4
- Strand
- Algebraic Processes
- Called
- Open sentences
- How it's taught
- Algebraic Processes: open sentences (□ + 4 = 9) leading to simple equations with letters in upper primary.
United Kingdom (National Curriculum)
Year 4
- Strand
- Algebra
- Called
- Missing-number equations
- How it's taught
- Algebra appears formally in Year 6: missing-number problems, simple formulae and linear sequences.
Canada (Ontario)
Grade 4
- Strand
- Algebra
- Called
- Missing-number equations
- How it's taught
- Algebra strand from Grade 1: patterns, then variables and equalities; includes coding expectations (sequential events, loops, conditionals).