In this section you will practice the we've looked at:
breaking up numbers and adding the parts
bridging, or making up to 10
jumping, using a number line
We also looked at how to use a , writing the numbers down the page and adding them by place value. This strategy can also be really useful if we need to .
Use the number line, to help you find the value of 43 + 12.
Use a strategy to find the sum of 49 + 16
Find the value of 219 + 29.
uses mental and written strategies for addition and subtraction involving two-, three-, four and five-digit numbers