Count forwards and backwards by tens and hundreds on and off the decade, eg 1220, 1230, 1240, ... (on the decade); 423, 323, 223, ... (off the decade)
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. | 10 less, 10 more than 508 | |
19. | 100 less, 100 more than 475 | |
20. | 10 less, 100 more than500 | |
21. | 100 less, 10 more than 358 | |
22. | 100 less, 100 more than 458 | |
23. | 100 less, 100 more than 765 | |
24. | 100 less, 100 more than 342 | |
25. | 100 less, 100 more than 897 | |
26. | 100 less, 100 more than 453 | |
27. | 100 less, 100 more than 213 | |
28. | 10 less, 10 more than 5990 | |
29. | 100 less, 100 more than 4900 | |
30. | 10 less, 100 more than 5302 | |
31. | 10 less, 100 more than 4508 | |
32. | 100 less, 10 more than 6577 | |
33. | 100 less, 100 more than 7323 |