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Year 6: Ratio and simple algebra

Use ratio, missing values and number sequences.

Your worksheet

8 original questions with answers and explanations. Use ratio, missing values and number sequences.

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  1. Red and blue beads are in the ratio 2:3. There are 25 beads. How many are red?

    Show answer and explanation

    10

    Five equal parts; each part has 5 beads; red uses 2 parts.

  2. A recipe uses 300 g flour for 4 people. How much flour is needed for 6 people?

    Show answer and explanation

    450 g

    75 g per person x 6.

  3. Find n: 4n + 7 = 31.

    Show answer and explanation

    n = 6

    Subtract 7, then divide by 4.

  4. A sequence increases by the same amount each time. It starts 5, 9, 13, 17. Write the next two numbers.

    Show answer and explanation

    21, 25

    Add 4 each time.

  5. A rectangle has width w cm and length 9 cm. Write a rule for its perimeter P cm.

    Show answer and explanation

    P = 2w + 18

    Two widths plus two lengths.

  6. Find the missing number: ___/15 = 2/3.

    Show answer and explanation

    10

    Multiply the numerator and denominator of 2/3 by 5.

  7. A map uses 1 cm for 2 km. Two places are 3.5 cm apart on the map. What is the real distance?

    Show answer and explanation

    7 km

    3.5 x 2 = 7.

  8. Find two whole numbers greater than zero whose sum is 11 and product is 30.

    Show answer and explanation

    5 and 6

    5 + 6 = 11 and 5 x 6 = 30.

Curriculum and related practice

All questions, passages and answer guidance were written originally for Trace Learn. Curriculum sources define the teaching scope only.

Department for Education: mathematics programmes of study

Curriculum source checked 2026-09-30.

Questions parents ask

What does this worksheet practise?

Use ratio, missing values and number sequences.

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Try each question before opening its answer. Compare your method with the explanation, then revisit any question you found difficult.

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