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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 308 · 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. 1.506 × 5 =
  2. 2.225 × 4 =
  3. 3.651 × 9 =
  4. 4.362 × 9 =
  5. 5.505 × 3 =
  6. 6.367 × 4 =
  7. 7.774 × 4 =
  8. 8.654 × 5 =
  9. 9.754 × 9 =
  10. 10.181 × 9 =
  11. 11.447 × 8 =
  12. 12.943 × 3 =
  13. 13.633 × 5 =
  14. 14.266 × 4 =
  15. 15.462 × 3 =
  16. 16.594 × 3 =
  17. 17.249 × 9 =
  18. 18.299 × 7 =
  19. 19.819 × 3 =
  20. 20.251 × 4 =
  21. 21.601 × 8 =
  22. 22.528 × 8 =
  23. 23.681 × 8 =
  24. 24.231 × 3 =
  25. 25.156 × 4 =
  26. 26.568 × 4 =
  27. 27.871 × 6 =
  28. 28.668 × 8 =
  29. 29.713 × 6 =
  30. 30.341 × 7 =
  31. 31.594 × 4 =
  32. 32.868 × 3 =
  33. 33.208 × 6 =
  34. 34.281 × 8 =
  35. 35.644 × 9 =
  36. 36.593 × 9 =
  37. 37.458 × 9 =
  38. 38.335 × 5 =
  39. 39.983 × 4 =
  40. 40.659 × 3 =

Answer key

  1. 2530
  2. 900
  3. 5859
  4. 3258
  5. 1515
  6. 1468
  7. 3096
  8. 3270
  9. 6786
  10. 1629
  11. 3576
  12. 2829
  13. 3165
  14. 1064
  15. 1386
  16. 1782
  17. 2241
  18. 2093
  19. 2457
  20. 1004
  21. 4808
  22. 4224
  23. 5448
  24. 693
  25. 624
  26. 2272
  27. 5226
  28. 5344
  29. 4278
  30. 2387
  31. 2376
  32. 2604
  33. 1248
  34. 2248
  35. 5796
  36. 5337
  37. 4122
  38. 1675
  39. 3932
  40. 1977

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