In this activity, we'll look at how to add two and three digits numbers together.
For example:
Question - Can you add the numbers below together?
+ | 6 | 9 | ||
9 | 3 | 8 | ||
So, how do we do this?
1) First, we add the 100 columns first - 900 + 0 = 900
2) Then, we add the 10 columns - 60 + 30 = 90
3) Next, we add the ones - 9 + 8 = 17
4) Finally, we add these together - 900 + 90 + 17 = 1007
Remember to put 0s as placeholders
Have a look below and you can see these steps written in number form.
+ | 6 | 9 | ||||
9 | 3 | 8 | ||||
9 | 0 | 0 | ||||
9 | 0 | |||||
1 | 7 | |||||
1 | 0 | 0 | 7 |
Ready to give this a go?