1. Word cloud

120 seconds

What do you call a number that is rounded to the nearest ten or hundred?

2. Slide

60 seconds

Rounding to the Nearest Ten and Hundred

To round to the nearest ten, count the digits in the number and look at the digit in the ones place. If the ones place is 5 or more, round up. If the ones place is 4 or less, round down. To round to the nearest hundred, look at the digit in the tens place. If the tens place is 5 or more, round up. If the tens place is 4 or less, round down. Remember to add a zero or two zeroes if the number is rounded up or down.

3. Slide

60 seconds

Did you know?

Rounding to the nearest ten or hundred was first used by the Ancient Egyptians. They used the method to simplify large numbers that were used in trading.

4. Open question

180 seconds

Work together in pairs: Q: What two tens is 28 between?

5. Personalised Feedback

360 seconds

If you have 67 apples, would you round it to the nearest ten or hundred? Why?

6. Open question

180 seconds

Work together in pairs: What two hundreds is 57 between?

7. Poll

120 seconds

Which number would round to 80 when rounded to the nearest TEN?

- 71
- 83
- 95
- 74
- 87

8. Poll

60 seconds

Which number would round to 700 when rounded to the nearest HUNDRED?

- 789
- 632
- 685
- 764

9. Poll

60 seconds

Round 43 to the nearest ten.

- 30
- 45
- 40
- 50

10. Poll

60 seconds

Round 821 to the nearest hundred.

- 1000
- 800
- 820
- 900

11. Poll

60 seconds

Round 1894 to the nearest ten.

- 2000
- 1880
- 1890
- 1900

12. Drawings

450 seconds

Brain break: Draw a panda doing a handstand while balancing an ice cream cone on its foot

13. Open question

180 seconds

Work together in pairs: What is the result of rounding the number 57 to the nearest ten?

14. Open question

210 seconds

3B drove 182 miles to Six Flags. Rounded to the nearest TEN, 3B drove how many miles?

15. Open question

210 seconds

3B drove 182 miles to Six Flags. Rounded to the nearest HUNDRED, 3B drove how many miles?

Made with ❤️ from Norway