Do you remember how we can ?
We have written a number in the number expander below.
What is the value of the units?
What is the value of the tens?
Now look at the number 67. What is the value of the tens?
We are going to use place value to add numbers together, working down our page. This is called using an algorithm.
Find the value of 41 + 56.
uses mental and written strategies for addition and subtraction involving two-, three-, four and five-digit numbers