4.NBT.5
Multiply a whole number of up to four digits by a one-digit whole number, and multiply two two-digit numbers, using strategies based on place value and the properties of operations. Illustrate and explain the calculation by using equations, rectangular arrays, and/or area models.
| 1. | Changing Numbers - 11 to 110 | |
| 2. | Changing Numbers - 72 to 720 | |
| 3. | Use the pattern: 2 x 2, 20 x 2, 200 x 2 | |
| 4. | Use the pattern: 2 x 4, 2 x 40, 2 x 400 | |
| 5. | Use the pattern: 2 x 8, 2 x 80, 2 x 800 | |
| 6. | Use the pattern: 2 x 6, 2 x 60, 2 x 600 | |
| 7. | Use the pattern: 2 x 1, 2 x 11, 2 x 111 | |
| 8. | Same or different: Click all boxes with the answer 18. | |
| 9. | Same or different: Click all boxes with the answer 16. | |
| 10. | Same or different: Click all boxes with the answer 15. | |
| 11. | Hit the big times: 12 x 2 | |
| 12. | Hit the big times: 14 x 2 | |
| 13. | Hit the big times: 11 x 5 | |
| 14. | Hit the big times: 13 x 2 | |
| 15. | Hit the big times: 12 x 4 | |
| 16. | Hit the big times: 31 x 3 | |
| 17. | Hit the big times 42x2 | |
| 18. | Hit the big times: 21 x 4 | |
| 19. | Hit the big times 30x2 | |
| 20. | Hit the big times: 12 x 3 | |
| 21. | Use the pattern: 3 x 15 = 3 x 10 + 3 x 5 | |
| 22. | Times machine: write the correct multiplier on the times machine | |
| 23. | Times machine: write the correct multiplier on the times machine | |
| 24. | True or False: 24 x 5 = 120 | |
| 25. | True or False: 31 x 7 = 217 | |
| 26. | True or False: 18 x 6 = 118 | |
| 27. | True or False: 61 x 8 = 486 | |
| 28. | True or False: 13 x 9 = 117 | |
| 29. | Product Launch: 24 x 4 | |
| 30. | Double up: Double 99, 990 | |
| 31. | Double up: Double 38, 380 | |
| 32. | Same or different: Click all the boxes where the answer is the same. | |
| 33. | Same or different: Click all the boxes where the answer is the same. | |
| 34. | Same or different: Click all the boxes where the answer is the same. | |
| 35. | Same or different: Click all the boxes where the answer is the same. | |
| 36. | Same or different: Click all the boxes where the answer is the same. | |
| 37. | Multi-multiplication: Use 4 different multipliers to change the number 25 | |
| 38. | Multi-multiplication: Use 4 different multipliers to change the number 32 | |
| 39. | Multi-multiplication: Use 4 different multipliers to change the number 24 | |
| 40. | Divide and Multiply | |
| 41. | Divide and multiply - 8, 480 | |
| 42. | Divide and multiply - 8,720 | |
| 43. | Divide and multiply - 40, 320 | |
| 44. | Divide and multiply - 30, 210 | |
| 45. | Divide and multiply: 63 / 9 | |
| 46. | Divide and multiply: 36 / 4 | |
| 47. | Divide and multiply 240/6 | |
| 48. | Farm Products: Write the product of 4 and 8 | |
| 49. | Farm Products: Write the product of 3 and 8 | |
| 50. | Use the pattern: 4 x 16 = 4 x 10 + 4 x 6 | |
| 51. | Use the pattern: 5 x 15 = 5 x 10 + 5 x 5 | |
| 52. | Use the pattern: 4 x 23 = 4 x 20 + 4 x 3 | |
| 53. | Use the pattern: 2 x 26 = 2 x 20 + 2 x 6 | |
| 54. | Use the pattern: 8x43 = 8x40 + 8x3 | |
| 55. | Use the pattern: 5 x 35 = 5 x 30 + 5 x 5 | |
| 56. | Use the pattern: 9x63 = 9x60 + 9x3 | |
| 57. | Use the pattern: 6x84 = 6x80 + 6x4 | |
| 58. | Use the pattern: 4x73 = 4x70 + 4x3 | |
| 59. | Use the pattern: 5x44 = 5x40 + 5x4 | |
| 60. | Use the pattern: 8x62 = 8x60 + 8x2 | |
| 61. | Use the pattern: 3x64 = 3x60 + 3x4 | |
| 62. | Use the pattern: 7x56 = 7x50 + 7x6 | |
| 63. | Use the pattern: 6x78 = 6x70 + 6x8 | |
| 64. | Product Launch: 32 x 8 | |
| 65. | Product Launch: 61 x 8 | |
| 66. | Product Launch: 2x96 | |
| 67. | Product Launch: 49 x 3 | |
| 68. | Product Launch: 6x70 | |
| 69. | Same or different: Click all the boxes where the answer is the same | |
| 70. | Same or different: Click the box where the answer is different | |
| 71. | Same or different: Are these products the same? | |
| 72. | Changing Numbers - 9 to 9000 | |
| 73. | Changing Numbers - 44 to 4400 | |
| 74. | Changing Numbers - 36 to 3600 | |
| 75. | Changing Numbers - 24 to 2400 | |
| 76. | Changing Numbers - 12 to 1200 | |
| 77. | Divide and multiply: 56 / 7 | |
| 78. | Divide and multiply: 64 / 8 | |
| 79. | Double up: Double 50, 50,000 | |
| 80. | Double up: Double 24, 2,400 | |
| 81. | Divide and Multiply | |
| 82. | Double up: Double 16, 1,600 | |
| 83. | Divide and multiply - 400/5 |