First things first. I hope you had an enjoyable day of taping!!
TenPoundHammer wrote: ↑
Wed Nov 08, 2017 8:20 pm
Looks like 8. Where are you going with this?
1. You CAN do math in your head. You just did. Several times. So remain confident that you can improve.
2. Can you see that each time you have done these, you've done the first step in breaking down the problem into smaller pieces? When we slipped into dealing with hundreds, you realized that the hundreds didn't change. They were irrelevant. Plus you almost instinctively realized that the 10s digit was going up by one, so you could do that in your head as well.
Here are the next exercises to stretch your thinking.
This time, tell me two things: What is the next multiple of 10 that's higher than the given number, and what do you have to add to the given number to get there. That second question is the one I've been asking recently. But the answer isn't going to be 8 every time.
Here's a couple numbers to try:
7 next multiple: 10 add: 3
31 next multiple: 40 add: 9
59 next multiple: 60 add: 1
265 next multiple: 270 add: 5