1. Word cloud
120 seconds
What is the definition of rounding?
2. Slide
60 seconds
Rounding is a way of changing a number to make it easier to work with. You round a number by finding which number it is closest to. For example, 7 is closest to the number 8, so 7 rounded is 8.
What is Rounding?
3. Slide
60 seconds
Rounding: The process of finding an approximate value of a number by replacing it with the closest multiple of a given number. Place Value: The value of a digit based on its position in a number. Estimation: A rough calculation or judgment of the value, number, quantity, or extent of something.
Concepts:
4. Slide
60 seconds
The concept of rounding dates back to the ancient Babylonians, who used a base-60 system for counting and mathematics. The traditional rounding rules of The term 'rounding' was first used by mathematician, Carl Friedrich Gauss, in 1794 when he wrote about a 'rounding off of numbers.'
Did you know?
5. Slide
60 seconds
6. Slide
60 seconds
A curipod slide
7. Open question
180 seconds
Work together in pairs: What is the difference between rounding to the nearest ten and rounding to the nearest hundred?
8. Personalised Feedback
360 seconds
If you have 28 apples and you want to round it to the nearest 10, how many apples would you have?
9. Open question
180 seconds
Work together in pairs: What is the main difference between 'round up' and 'round down'?
10. Drawings
450 seconds
Brain break: Draw a magical gorilla who can fly and shoot rainbows out of its belly button
11. Poll
60 seconds
What is 27 rounded to the nearest ten?
- 20
- 25
- 30
- 35
12. Poll
60 seconds
What is 146 rounded to the nearest hundred?
- 200
- 140
- 100
- 150
13. Slide
60 seconds
A curipod slide
Made with ❤️ from Norway