2.NBT.8
Mentally add 10 or 100 to a given number 100-900, and mentally subtract 10 or 100 from a given number 100-900.
1. | 10 less, 10 more than 490 | |
2. | 100 less, 100 more than 873 | |
3. | Which number is 10 more than 989? | |
4. | Which number is 10 less than 724? | |
5. | Which number is 100 more than 456? | |
6. | Which number is 100 less than 388? | |
7. | 10 less, 10 more than 150 | |
8. | 10 less, 10 more than 183 | |
9. | 10 less, 10 more than 418 | |
10. | 10 less, 10 more than 106 | |
11. | 10 less, 10 more than 204 | |
12. | 100 less, 100 more than 403 | |
13. | 10 less, 10 more than 150 | |
14. | 10 less, 10 more than 290 | |
15. | 10 less, 10 more than 500 | |
16. | 10 less, 10 more than 620 | |
17. | 10 less, 10 more than 880 | |
18. | Which number is 10 less than 100? |