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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 360 · 40 questions
TalentJR

How to do it in your head (Biggest part first): Split the 3-digit number into hundreds, tens and ones. Multiply the hundreds and keep that number in your head. Multiply the tens and add, then multiply the ones and add.

NameDateTime takenScore ___ / 40
  1. 1.275 × 9 =
  2. 2.252 × 9 =
  3. 3.718 × 3 =
  4. 4.237 × 3 =
  5. 5.261 × 4 =
  6. 6.266 × 9 =
  7. 7.123 × 9 =
  8. 8.543 × 6 =
  9. 9.572 × 4 =
  10. 10.443 × 4 =
  11. 11.126 × 8 =
  12. 12.509 × 7 =
  13. 13.523 × 5 =
  14. 14.641 × 4 =
  15. 15.279 × 9 =
  16. 16.401 × 8 =
  17. 17.669 × 3 =
  18. 18.495 × 5 =
  19. 19.884 × 8 =
  20. 20.343 × 5 =
  21. 21.954 × 3 =
  22. 22.249 × 5 =
  23. 23.959 × 8 =
  24. 24.565 × 5 =
  25. 25.741 × 9 =
  26. 26.915 × 7 =
  27. 27.651 × 5 =
  28. 28.153 × 3 =
  29. 29.386 × 8 =
  30. 30.245 × 3 =
  31. 31.813 × 3 =
  32. 32.749 × 4 =
  33. 33.505 × 4 =
  34. 34.169 × 3 =
  35. 35.216 × 3 =
  36. 36.455 × 5 =
  37. 37.458 × 3 =
  38. 38.645 × 8 =
  39. 39.873 × 7 =
  40. 40.316 × 4 =

Answer key

  1. 2475
  2. 2268
  3. 2154
  4. 711
  5. 1044
  6. 2394
  7. 1107
  8. 3258
  9. 2288
  10. 1772
  11. 1008
  12. 3563
  13. 2615
  14. 2564
  15. 2511
  16. 3208
  17. 2007
  18. 2475
  19. 7072
  20. 1715
  21. 2862
  22. 1245
  23. 7672
  24. 2825
  25. 6669
  26. 6405
  27. 3255
  28. 459
  29. 3088
  30. 735
  31. 2439
  32. 2996
  33. 2020
  34. 507
  35. 648
  36. 2275
  37. 1374
  38. 5160
  39. 6111
  40. 1264

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