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Maths · Number

Compare and order numbers

Order or compare a bounded set of integers or decimals.

Free to use and free to share. There is no sign-up, no score, and nothing a child does here is recorded or sent anywhere.

Practise it now

Zoom into the line and pin the number 3.47 exactly.

This exercise practises compare and order numbers alongside its own main skill, Place Value & Decimals.

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A worked example

One question of the kind this skill is tested with, worked all the way through: the reasoning, and what the wrong answers are there to catch.

Comparing values on a number line

Points A, D, S and C are marked on the number line. Which of the four values is the greatest?

Each small step is worth 1, and the labelled ticks are 10 apart.

  1. 28
  2. 12
  3. 19
  4. 14

Answer: 28

How you get there

A sits furthest right of the four points, which means its value 28 is the greatest; the next one along is 19, so counting digits rather than reading positions is what puts the others first.

Why the other answers tempt

A number written with more digits after the point is not automatically the larger one.

If they are stuck, say this

On a number line the greatest value is always the point furthest right, whatever its digits look like.

Now do it live in Number Line Zoomer

What this exercise is doing

Number Line Zoomer

Zoom into the line and pin the number 3.47 exactly.

This engine’s own main skill is Place Value & Decimals. It practises compare and order numbers alongside it.

Every zoom cuts one gap into ten equal pieces. Between 3 and 4 sit the tenths (3.4), and between 3.4 and 3.5 sit the hundredths (3.47). Decimals never run out - you can always zoom in and split again, which is exactly what each new place-value column means.

What to say if they get stuck

  1. Drag the line left and right to travel. Use + to magnify.
  2. 3.47 lives between 3.4 and 3.5 - zoom until you can see the little hundredth ticks in that gap.
  3. From 3.4, count 7 tiny ticks to the right. That is 3.47.

Open Number Line Zoomer on its own page to share it

How compare and order numbers differs from the skills beside it

The same exercise practises several skills, and telling them apart is often the difficulty rather than the exercise itself. On this page the skill is: order or compare a bounded set of integers or decimals, and it stops where excludes rounding.

  • Locate an equivalent value

    Locate a fraction, decimal, or percentage at the same number-line position. One value and one bounded number line.

  • Read place value

    State the value of one digit in an integer or decimal. One specified digit only.

Related maths skills

All maths 11+ skills

Questions parents ask about compare and order numbers

Answered from what the skill map records about this skill, not from a template. Every answer here is on the page, and the same questions are the page's FAQ structured data.

Order or compare a bounded set of integers or decimals. It is one of 55 named maths skills in the 11+, in the number strand, and this page carries 1 interactive exercise that practises it.

Knowing which maths topic to practise is most of the work

A free diagnostic covers arithmetic, fractions, geometry, measure and data handling, and comes back with the topics to spend the next few weeks on.