Solve addition and subtraction two-step problems in contexts, deciding which operations and methods to use and why
| 1. | Make 400: 200+100+? | |
| 2. | Make 500: 100+200+? | |
| 3. | Make 600: 50+550+? | |
| 4. | Make 800: 125+225+? | |
| 5. | Make 1000: 250+300+* | |
| 6. | Make 1000: 750+50+* | |
| 7. | Make 1000: 850+150+* | |
| 8. | Make 1000: 600+150+* | |
| 9. | Make 1000: 50+800+* | |
| 10. | Addition chains 10 multiples | |
| 11. | Addition chains 10 multiples | |
| 12. | Number detectives Three's a breeze: 31+29+*=87 | |
| 13. | Number detectives Three's a breeze: 42+12+*=74 | |
| 14. | Number detectives Three's a breeze: 18+22+*=81 | |
| 15. | Number detectives Three's a breeze: 56+21+*=88 | |
| 16. | Number detectives Three's a breeze: 27+23+*=58 | |
| 17. | Make 150 70+44+* | |
| 18. | Make 120 52+37+* | |
| 19. | Make 140 96+14+* | |
| 20. | Make 130 75+41+* | |
| 21. | Make 160 57+33+* | |
| 22. | Write the missing number: 15 + 110 + ? = 134 | |
| 23. | Write the missing number: 18 + 111 + ? = 131 | |
| 24. | Write the missing number: ? + 104 + 15 = 126 | |
| 25. | Write the missing number: 110 + ? + 107 = 229 | |
| 26. | Write the missing number: 109 + ? + 115 = 330 | |
| 27. | Write the missing number: 21 + 107 + ? = 137 | |
| 28. | Write the missing number: 125 + ? + 5 = 142 | |
| 29. | Write the missing number: 118 + ? + 20 = 145 | |
| 30. | Write the missing number: 13 + ? + 126 = 148 | |
| 31. | Write the missing number: 14 + 117 + ? = 139 | |
| 32. | Subtraction chains: ?-12-7-6=65, ?-11-6-13=50 | |
| 33. | Subtraction chains: ?-11-10-12, ?-8-11-4=7 | |
| 34. | Subtraction chains: ?-10-11-9, 50-12-8-7=23 | |
| 35. | Subtraction chains: ?-11-8-10, ?-9-6-7=34 | |
| 36. | Subtraction chains: ?-7-9-12, ?-12-5-11 | |
| 37. | Subtraction chains: 87-14-13-15, 98-17-11-6 | |
| 38. | Write the missing number: 750+100+?=1000 | |
| 39. | Write the missing number: 600+50+?=1000 | |
| 40. | Write the missing number: 500+450+?=1000 | |
| 41. | Write the missing number: 250+50+?=1000 | |
| 42. | Write the missing number: 650+100+?=1000 | |
| 43. | Subtraction Chains | |
| 44. | Subtraction Chains | |
| 45. | Subtraction Chains | |
| 46. | Subtraction Chains | |
| 47. | Road work: Distance to go on one tank of fuel | |
| 48. | Fill Up The Tank: 1000-255=? | |
| 49. | Sum In A Circle - numbers in each groups total 15 | |
| 50. | A Maths Story - match number sentence to story | |
| 51. | Which Operation? - 95*5=90 | |
| 52. | Once Upon A Time... - match number sentence to story | |
| 53. | Number Quest - complete number sentence | |
| 54. | Build A Total - number sequence, 45 | |
| 55. | Head Hunt - number problem | |
| 56. | A Maths Story - match number sentence to story | |
| 57. | Mega-sum-a-saurus - complete missing digits to make number sentence | |
| 58. | Mega-sum-a-saurus - complete missing digits to make number sentence | |
| 59. | Mega-sum-a-saurus - complete missing digits to make number sentence | |
| 60. | Mega-sum-a-saurus - complete missing digits to make number sentence | |
| 61. | Mega-sum-a-saurus - complete missing digits to make number sentence | |
| 62. | Mega-sum-a-saurus - complete missing digits to make number sentence | |
| 63. | Pump up the volume: 3000 - 934 | |
| 64. | Build A Total - number sequence, 40 | |
| 65. | Build A Total - number sequence, 50 | |
| 66. | Build A Total - number sequence, 25 | |
| 67. | Build A Total - number sequence, 35 | |
| 68. | Build A Total - number sequence, 23 | |
| 69. | Build A Total - number sequence, 32 |