1. Number and place value

Lesson

Can you order and compare two or three digit numbers ?

Write the greater than (>) or less than (<) symbol in the box to make this number sentence true.

87\,⬚\,98

Worked Solution

Idea summary

Greater than (>) or less than (<) symbols are useful to compare numbers.

In this video, we order four digit numbers on a number line.

We want to work out which of three numbers is the largest.

a

Choose which line has 6630,6830, and 6730 plotted correctly.

A

B

Worked Solution

b

Write the three numbers from smallest to largest.

Worked Solution

Idea summary

Remember that the smaller a number is, the further to the left on a number line it is.

In this video we look at how to order numbers from smallest to largest, using a place value table. We also look at using the symbols for 'less than' (\lt) and 'greater than' (\gt).

Arrange 2329, 2239, 2392 from largest to smallest.

Worked Solution

Idea summary

When we use place value to order numbers, always start with the far left digit and think about the digit's place value.

applies place value to order, read and represent numbers of up to five digits