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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 353 · 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. 1.262 × 5 =
  2. 2.854 × 5 =
  3. 3.841 × 5 =
  4. 4.717 × 6 =
  5. 5.332 × 4 =
  6. 6.772 × 3 =
  7. 7.601 × 8 =
  8. 8.261 × 7 =
  9. 9.885 × 6 =
  10. 10.963 × 8 =
  11. 11.315 × 3 =
  12. 12.526 × 9 =
  13. 13.516 × 4 =
  14. 14.865 × 3 =
  15. 15.251 × 5 =
  16. 16.458 × 4 =
  17. 17.689 × 8 =
  18. 18.591 × 7 =
  19. 19.512 × 5 =
  20. 20.521 × 4 =
  21. 21.402 × 9 =
  22. 22.471 × 3 =
  23. 23.267 × 4 =
  24. 24.447 × 7 =
  25. 25.404 × 8 =
  26. 26.632 × 4 =
  27. 27.392 × 6 =
  28. 28.322 × 4 =
  29. 29.479 × 6 =
  30. 30.378 × 3 =
  31. 31.958 × 4 =
  32. 32.737 × 6 =
  33. 33.354 × 8 =
  34. 34.556 × 5 =
  35. 35.172 × 9 =
  36. 36.289 × 7 =
  37. 37.395 × 8 =
  38. 38.981 × 3 =
  39. 39.452 × 3 =
  40. 40.433 × 8 =

Answer key

  1. 1310
  2. 4270
  3. 4205
  4. 4302
  5. 1328
  6. 2316
  7. 4808
  8. 1827
  9. 5310
  10. 7704
  11. 945
  12. 4734
  13. 2064
  14. 2595
  15. 1255
  16. 1832
  17. 5512
  18. 4137
  19. 2560
  20. 2084
  21. 3618
  22. 1413
  23. 1068
  24. 3129
  25. 3232
  26. 2528
  27. 2352
  28. 1288
  29. 2874
  30. 1134
  31. 3832
  32. 4422
  33. 2832
  34. 2780
  35. 1548
  36. 2023
  37. 3160
  38. 2943
  39. 1356
  40. 3464

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