BrightWorld › Topics › Maths › Explaining Mathematical Relationships
Explaining Mathematical Relationships practice for Years 2–6
Maths · Reasoning · Key Stage 1, Key Stage 2. Spotting rules, comparing numbers and explaining how numbers are connected.
What your child will learn
- Use the inverse relationship between addition and subtraction to check calculations and solve missing-number problems.
- Show that addition and multiplication can be done in any order but subtraction and division cannot.
- Estimate the answer to a calculation and use inverse operations to check answers.
- Estimate and use inverse operations to check answers to calculations with four-digit numbers.
- Substitute into simple formulae and solve one- and two-step equations.
- Use simple formulae in context and find pairs of numbers that satisfy an equation.
Try some free explaining mathematical relationships questions
These are real BrightWorld questions. In the app, every question adapts to your child’s level and comes with hints and worked examples.
Question 1. 13 − 5 = 8. Check it: 8 + 5 = ?
13 − 5 = 8 8 + 5 = ?
13 − 5 = 8 8 + 5 = ?
- 8
- 3
- 13
Show the answer
13
Question 2. 19 − 8 = 11. Check it: 11 + 8 = ?
19 − 8 = 11 11 + 8 = ?
19 − 8 = 11 11 + 8 = ?
- 3
- 19
- 11
Show the answer
19
Question 3. Is 20 ÷ 10 the same as 10 ÷ 20?
20 ÷ 10 10 ÷ 20
20 ÷ 10 10 ÷ 20
- No — order matters
- Yes — it is the same
Show the answer
No — order matters
How BrightWorld helps with explaining mathematical relationships
Children practise explaining mathematical relationships at Easy, Medium or Hard, in mixed quizzes, in the Answer Run game and inside story missions. If they get stuck, they get a hint and a worked example; if they’re flying, the questions get harder. Parents see how they’re doing in the parent area.
Practise explaining mathematical relationships in BrightWorld
BrightWorld starts at your child’s level with a quick, fun check, then adapts as they learn. No ads, no strangers, and you see what they’ve learned.
Start free
BrightWorld starts at your child’s level with a quick, fun check, then adapts as they learn. No ads, no strangers, and you see what they’ve learned.
Start free