SEAGReady
NumberP7 level23 questions in the full course
Supporting practice: this topic helps build angle understanding, but it is not selected for official-format mocks.Finding arbitrary percentages of amounts is retained as supporting application practice and is not treated as direct official evidence.

Find Any Percentage of an AmountSEAG Practice Questions

Finding any percentage of an amount using the 'find 1% then multiply' or 'find 10% then combine' methods.

Where your child meets this in real life: Calculating 15% service charge, 35% discount, or 17.5% VAT

What your child needs to know

SEAGReady breaks find any percentage of an amount into 3 steps, taught in order so each skill builds on the last.

  1. 1

    Multiples of 10%

    supporting lesson — excluded from official-format mocks

    Find multiples of 10% (such as 20%, 30%, 40%) by finding 10% and multiplying

  2. 2

    Combining 10% and 5%

    supporting lesson — excluded from official-format mocks

    Find percentages like 15%, 25%, 35% by combining 10% portions with 5% (half of 10%)

  3. 3

    Using 1% for Any Percentage

    supporting lesson — excluded from official-format mocks

    Find any percentage using the 1% method: divide by 100 to find 1%, then multiply

Try these SEAG-style questions

Three free sample questions from our find any percentage of an amount course. Every question comes with a full explanation, and hints that guide without giving the answer away.

Question 1Confidence builder

A school choir has 150 members. 20% of them are boys. How many boys are in the choir?

Answer choices for question 1
Question 2Confidence builder

A jacket costs £60. In a sale, there is 15% off. How much money is taken off the price?

Answer choices for question 2
Question 3Confidence builder

A school has 500 pupils. 23% of them are in the after-school club. How many pupils are in the club?

Answer choices for question 3

Try the lesson: Multiples of 10%

This is the exact interactive worked example your child sees in SEAGReady. Step through it and watch the method build up.

A school football team has 120 supporters at their match. 30% of them are wearing team scarves.

How many supporters are wearing scarves?

30% of 120

Find 10% first
1

To find 10%, divide by 10

Step 1 of 4

Prefer to read? See every step written out

A school football team has 120 supporters at their match. 30% of them are wearing team scarves.

How many supporters are wearing scarves?

  1. 1

    Find 10% first

    • To find 10%, divide by 10
    • Work out 10% of 120120 ÷ 10 = 12
  2. 2

    Multiply to get 30%

    • 30% is three lots of 10%
    • Multiply by 312 × 3 = 36

36 supporters are wearing team scarves.

The key insight: Think of 10% as a building block - just multiply it to get any multiple of 10%!

Common mix-up: 30% of 120 = 120 ÷ 30 = 4. Don't divide by the percentage number. Find 10% first, then multiply.

Mistakes to watch for

These are the misconceptions we see most often in find any percentage of an amount, including the ones our practice questions are specifically designed to catch.

  • Using the wrong method (dividing by the percentage)
  • Errors when combining 10%s and 1%s
  • Forgetting to find 1% first for awkward percentages

Build these skills first

Struggling with find any percentage of an amount? The real gap is often in one of these earlier topics.

More number practice

23 questions on this topic alone

Master find any percentage of an amount and everything it unlocks

SEAGReady finds the exact step where your child gets stuck, teaches it with worked examples like the one above, and brings it back for review so it sticks.

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