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Decimals – practice for Years 5–6

Sample questions on Decimals with the right answer and a worked solution, from easy to hard. In the Pickles Academy app a child gets new questions of the same kind every time, so they can't just learn the answers by heart.

Subject
Maths
Year
Years 5–6
Curriculum area
Number and algebra

Question types: Decimal arithmetic

Rule: Decimals

To add or subtract, write the numbers in columns point under point; fill a missing place with a zero.

Multiplying by 10, 100, 1000 → move the point 1, 2, 3 places right; dividing → left.

Example: 6.47 − 5.80 = 0.67; 2.5 × 100 = 250

Watch out: Don’t line the numbers up on the right like whole numbers: 6.47 − 5.8 = 0.67, not 5.89.

Sample questions

  1. Question 1 Easy

    Work out: 8.2 − 3.96 =

    Show the solution
    Answer: 4.24

    How it works: Write the numbers in columns with the decimal points lined up: 8.2 − 3.96 = 4.24

  2. Question 2 Normal

    Work out: 5.1 × 10 =

    Show the solution
    Answer: 51

    How it works: When multiplying by 10, move the decimal point one place to the right: 51

  3. Question 3 Hard

    Work out: 4.2 − 1.46 =

    Show the solution
    Answer: 2.74

    How it works: Write the numbers in columns with the decimal points lined up: 4.2 − 1.46 = 2.74

Related topics

All Maths topics

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