TapLearn
Tenths for Year 3: Cut, Count and Share on Tenths Pier

Tenths for Year 3: Cut, Count and Share on Tenths Pier

Learn tenths for Year 3: cut shapes into 10 equal parts, count in tenths on a number line and find tenths of metres, coins and numbers.

Play now

What you'll learn

  • A tenth is one of 10 equal parts of a whole
  • What the numerator and denominator tell you in 3/10
  • Count up and down in tenths and know 10/10 = 1 whole
  • One tenth of a metre is 10 centimetres
  • Find one tenth of an amount by dividing by 10
  • Dividing a number from 1 to 9 by 10 gives tenths

Chapter by chapter

  1. Make tenths: split a whole into 10 equal parts Free to try

    Year 3 maths · 1

  2. Count up and down in tenths on a number line

    Year 3 maths · 1

  3. Tenths of a length: tenths of a metre

    Year 3 maths · 1

  4. Tenths of amounts: share into 10 equal groups

    Year 3 maths · 1

  5. Divide numbers 1 to 9 by 10 to make tenths

    Year 3 maths · 1

  6. Big Wheel Challenge: tenths quiz (10 questions)

See every Maths chapter in the chapter library

What the chapters cover in the national curriculum in England:

  1. Year 3 maths: Count up and down in tenths; recognise that tenths arise from dividing an object into 10 equal parts and in dividing one-digit numbers or quantities by 10

About this adventure

Tenths Pier is an interactive maths game that teaches children aged 7–9 tenths for Year 3: what a tenth is, how to count up and down in tenths, and how tenths come from dividing by 10.

At each seaside stall the player does the maths with their hands. They cut a chocolate bar into 10 equal pieces, hop a frog along a number line from 0 to 1, snip ribbon at the right mark on a metre stick, deal coins into 10 treasure chests and share pizzas between 10 crabs. A narrator reads every instruction aloud.

Key ideas are named clearly. The denominator, 10, shows how many equal parts make the whole, and the numerator shows how many parts we have. Ten tenths make one whole, one tenth of a metre is 10 cm, and 3 ÷ 10 = 3/10. A 10-question Big Wheel challenge checks everything at the end.

Questions and answers

What is a tenth, in simple words?

A tenth is one of 10 equal parts of a whole. If you cut a bar of chocolate into 10 pieces that are all the same size, each piece is one tenth, written 1/10.

How do you count in tenths?

You count in tenths by adding one tenth each time: 1/10, 2/10, 3/10 and so on. The top number goes up by one while the bottom number stays 10, and 10/10 is the same as 1 whole.

How do you find one tenth of a number?

To find one tenth of a number, divide it by 10, which is the same as sharing it into 10 equal groups. For example, one tenth of 40 is 4, because 40 ÷ 10 = 4.

What age is this tenths game for?

The game is made for children aged 7 to 9, matching Year 3 in the national curriculum for England. Older children who are unsure about tenths can use it to catch up, and a short warm-up recaps halves and quarters first.

What does the Tenths Pier game include and how long does it take?

It has five spoken, hands-on chapters, an optional fractions warm-up and a 10-question final challenge, taking about 35 minutes in total. Each chapter can also be played on its own.

More to explore

See all