Being able to find numbers on a number line is going to help us with this lesson. Let's remember how to read a number line.
Where is the point plotted on the number line?
The locations on a number line are labelled with numbers. We can find the location by reading the label at the point.
We are going to use a number line to see how to add some numbers together, and see how we can try different ways to do it.
Use the number line to help you find the value of 43 + 12.
When we add on a number line, we move to the right. It is usually easiest to start with the larger number and add the smaller number.
uses mental and written strategies for addition and subtraction involving two-, three-, four and five-digit numbers