Year 6 Arithmetic (SATs) · Algebra and formulae · Summary
Year 6 Arithmetic (SATs) Algebra and formulae: summary and key words
Part of the Year 6 Arithmetic (SATs) algebra and formulae chapter. Chapter overview · whole chapter on one page
Chapter summary
| Skill | Method |
|---|---|
| Formula | Write the words first, then replace them with letters: C = 3 + 2m. |
| Substitute | Replace each letter with its value, then multiply before adding: 2 × 6 + 3 = 15. |
| Term-to-term rule | The step between terms, in words: add 3 or subtract 5. |
| Missing number | Use the letter as the missing number: a + b = 10, so b = 10 - a. |
| Two unknowns | Add or subtract the two equations to find one unknown; check both. |
| Systematic table | Go through one variable in order, and find the other each time. |
Can you…?
- I can write a formula in letters from a description in words
- I can substitute values into a formula and work out the answer
- I can describe a sequence with a term-to-term rule and find a far term
- I can find a missing number in an equation with a letter
- I can list all the pairs or combinations in a systematic table
Key terms
- formula
- a rule that shows how one quantity depends on others, written with letters
- substitute
- replace a letter with a value
- term
- one number in a sequence
- term-to-term rule
- the rule that says how to get from one term to the next
- linear sequence
- a sequence that goes up or down by the same amount each time
- systematic
- in a clear, ordered way, so that nothing is missed