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?
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.
uses mental and written strategies for addition and subtraction involving two-, three-, four and five-digit numbers