In previous lessons, we have looked at and with up to 2 decimal places. We'll apply the same strategies when adding bigger decimals, so let's start with a bit of review
Find 13.74+37.26 giving your answer as a decimal.
Find 53.29-42.29, giving your answer as a decimal.
In this video, we work through an example of adding two numbers with 3 decimal places.
In this video, we use an example of adding two numbers with 3 decimal places where we need to rename some decimals, after regrouping.
Find 563.362 + 331.495, writing your answer in decimal form.
This video works through subtracting large numbers with decimals in the thousandths.
Find 96.689 - 83.413, writing your answer in decimal form.
Add and subtract decimals, with and without digital technologies, and use estimation and rounding to check the reasonableness of answers