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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 14 · 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. 1.351 × 9 =
  2. 2.141 × 3 =
  3. 3.834 × 6 =
  4. 4.885 × 3 =
  5. 5.768 × 5 =
  6. 6.319 × 6 =
  7. 7.127 × 6 =
  8. 8.367 × 5 =
  9. 9.496 × 3 =
  10. 10.649 × 9 =
  11. 11.271 × 9 =
  12. 12.165 × 6 =
  13. 13.475 × 3 =
  14. 14.182 × 9 =
  15. 15.364 × 7 =
  16. 16.451 × 9 =
  17. 17.902 × 5 =
  18. 18.821 × 8 =
  19. 19.335 × 6 =
  20. 20.914 × 6 =
  21. 21.421 × 5 =
  22. 22.452 × 3 =
  23. 23.733 × 8 =
  24. 24.399 × 3 =
  25. 25.457 × 6 =
  26. 26.517 × 3 =
  27. 27.836 × 8 =
  28. 28.331 × 7 =
  29. 29.358 × 4 =
  30. 30.225 × 8 =
  31. 31.316 × 7 =
  32. 32.159 × 7 =
  33. 33.737 × 7 =
  34. 34.611 × 4 =
  35. 35.621 × 6 =
  36. 36.674 × 3 =
  37. 37.714 × 9 =
  38. 38.641 × 9 =
  39. 39.736 × 8 =
  40. 40.185 × 5 =

Answer key

  1. 3159
  2. 423
  3. 5004
  4. 2655
  5. 3840
  6. 1914
  7. 762
  8. 1835
  9. 1488
  10. 5841
  11. 2439
  12. 990
  13. 1425
  14. 1638
  15. 2548
  16. 4059
  17. 4510
  18. 6568
  19. 2010
  20. 5484
  21. 2105
  22. 1356
  23. 5864
  24. 1197
  25. 2742
  26. 1551
  27. 6688
  28. 2317
  29. 1432
  30. 1800
  31. 2212
  32. 1113
  33. 5159
  34. 2444
  35. 3726
  36. 2022
  37. 6426
  38. 5769
  39. 5888
  40. 925

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