Always read the question!
For example:
Find the ones digit of 222222-22222-2222-222-22-2.
If you don’t read the question first, you might just calculate the whole thing. But if you did, you could just look at the ones digits. It saves a lot of time.
Always read the question!
For example:
Find the ones digit of 222222-22222-2222-222-22-2.
If you don’t read the question first, you might just calculate the whole thing. But if you did, you could just look at the ones digits. It saves a lot of time.
