You compare to find out what is the same and what is different. You compare numbers to find out if one is more than or less than another.

You can order numbers from the smallest to the largest or from the largest to the smallest.

Ordering sets of 3-digit numbers

Maths

In this unit pupils will use knowledge of place value to represent a 3-digit number in different ways. They will compare and order 3-digit numbers and position on number lines and unmarked number lines. In the future unit pupils will compare and order 4-digit numbers. They will learn what rounding is and will round 4-digit numbers to the nearest thousand, hundred and ten.

 In the prior unit pupils explored the counting sequence to 100 and beyond representing the numbers from 20-99 in different ways including on a number line They learned to represent 20-99 as a length In this unit pupils will use knowledge of place value to represent a 3-digit number in different ways They will compare and order 3-digit numbers and position on number lines and unmarked number lines

Representing 3-digit numbers, comparing and positioning on number lines

Order these numbers, starting with the smallest. 

Which number could be used to make this correct?

Which number is greater than 567 and less than 580? 

Rearrange the number cards to make this correct. 

One of the numbers in the inequality below has a missing digit. Which digit could you use to make the statement correct?

Which of the numbers below could be used to make this inequality correct?

Use the number cards to make a number greater than 951

Which number is greater than 491 and less than 507? 

This lesson will soon be taken down.

Ordering sets of 3-digit numbers

Lesson outcome