Step 4
Difficulty 4
| 1. | Adding hundreds: 695+*=959, 3492+500=*, 600m/t503=* | |
| 2. | Adding hundreds: 364+*=1264, 426+600=*, 200m/t 236 =* | |
| 3. | Adding hundreds 562+*=862, 658+200=*, 500m/t 352=* | |
| 4. | Adding hundreds: 263+*=663, 222+500=*, 600m/t406=* | |
| 5. | Adding hundreds 462+*=862, 426+300=* 800m/t169=* | |
| 6. | Number detectives: Four's no chore - Add 4 clustered numbers | |
| 7. | Number detectives: Four's no chore - Add 4 clustered numbers | |
| 8. | Number detectives: Four's no chore - Add 4 clustered numbers | |
| 9. | Number detectives: Four's no chore - Add 4 clustered numbers | |
| 10. | Number detectives: Four's no chore - Add 4 clustered numbers | |
| 11. | Adding the big ones: Write missing numbers in vertical addition | |
| 12. | Adding the big ones: Write missing numbers in vertical addition | |
| 13. | Thousands Takeaway: 70** - *104 = 1*99 | |
| 14. | Thousands Takeaway: *04* - 27*9 = 1*21 | |
| 15. | 50s get together: 4000 - ? = 750 | |
| 16. | 50s get together: 6000 - ? = 650 | |
| 17. | 50s get together: 2000 - ? = 150 | |
| 18. | 50s get together: 1000 - 650 = ? | |
| 19. | 50s get together: 1000 - 450 = ? | |
| 20. | 50s get together: 8000 - 450 = ? | |
| 21. | 50s get together: ? - 150 = 1850 | |
| 22. | 50s get together: ? - 350 = 6650 | |
| 23. | 50s get together: ? - 850 = 4150 | |
| 24. | 50s get together: ? - 5350 = 650 | |
| 25. | Give or Take a Thousand 193051 - 3000 = ? | |
| 26. | Give or Take a Thousand 714320 - 5000 = ? | |
| 27. | Give or Take a Thousand 685531 - 2000 = ? | |
| 28. | Give or Take a Thousand 214990 - 5000 = ? | |
| 29. | Give or Take a Thousand 33750 - 3000 = ? | |
| 30. | Give or Take a Thousand 142301 - 6000 = ? | |
| 31. | Give or Take a Thousand 335771 - 8000 = ? | |
| 32. | Give or Take a Thousand 1524151 - 20000 = ? | |
| 33. | Give or Take a Thousand 1348159 - 10000 = ? | |
| 34. | Give or Take a Thousand 31486128 - 30000 = ? | |
| 35. | Give or Take a Thousand 13221 - 8000 = ? | |
| 36. | Give or Take a Thousand 12850 - 4000 = ? | |
| 37. | Give or Take a Thousand 31280 - 3000 = ? | |
| 38. | Give or Take a Thousand 25190 - 6000 = ? | |
| 39. | Give or Take a Thousand 14820 - 7000 = ? | |
| 40. | Thirsty work: Comparison of volumes | |
| 41. | Fete accomplished: Money addition and subtraction | |
| 42. | Spot the difference: Write the difference between 612 and 588 | |
| 43. | Spot the difference: Write the difference between 315 and 291 | |
| 44. | Spot the difference: Write the difference between 708 and 687 | |
| 45. | Spot the difference: Write the difference between 475 and 395 | |
| 46. | Spot the difference: Write the difference between 117 and 95 | |
| 47. | Crossing the line: Subtracting distances | |
| 48. | All around the garden: Addition and subtraction of distance measurements | |
| 49. | Taking the Big Ones: Write the missing numbers in vertical subtraction algorithms | |
| 50. | Taking the Big Ones: Write the missing numbers in vertical subtraction algorithms | |
| 51. | Taking the Big Ones: Write the missing numbers in vertical subtraction algorithms | |
| 52. | Crossing the line: Subtracting distances |