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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 743 · 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. 1.928 × 7 =
  2. 2.971 × 7 =
  3. 3.411 × 3 =
  4. 4.952 × 8 =
  5. 5.365 × 3 =
  6. 6.448 × 8 =
  7. 7.743 × 6 =
  8. 8.937 × 9 =
  9. 9.465 × 8 =
  10. 10.331 × 3 =
  11. 11.971 × 3 =
  12. 12.382 × 3 =
  13. 13.715 × 7 =
  14. 14.858 × 9 =
  15. 15.669 × 9 =
  16. 16.398 × 4 =
  17. 17.876 × 4 =
  18. 18.706 × 7 =
  19. 19.883 × 3 =
  20. 20.458 × 7 =
  21. 21.183 × 7 =
  22. 22.678 × 5 =
  23. 23.126 × 9 =
  24. 24.328 × 5 =
  25. 25.545 × 8 =
  26. 26.356 × 4 =
  27. 27.289 × 5 =
  28. 28.855 × 9 =
  29. 29.608 × 7 =
  30. 30.113 × 8 =
  31. 31.554 × 5 =
  32. 32.726 × 9 =
  33. 33.193 × 9 =
  34. 34.713 × 3 =
  35. 35.639 × 8 =
  36. 36.459 × 7 =
  37. 37.321 × 4 =
  38. 38.187 × 4 =
  39. 39.556 × 9 =
  40. 40.165 × 7 =

Answer key

  1. 6496
  2. 6797
  3. 1233
  4. 7616
  5. 1095
  6. 3584
  7. 4458
  8. 8433
  9. 3720
  10. 993
  11. 2913
  12. 1146
  13. 5005
  14. 7722
  15. 6021
  16. 1592
  17. 3504
  18. 4942
  19. 2649
  20. 3206
  21. 1281
  22. 3390
  23. 1134
  24. 1640
  25. 4360
  26. 1424
  27. 1445
  28. 7695
  29. 4256
  30. 904
  31. 2770
  32. 6534
  33. 1737
  34. 2139
  35. 5112
  36. 3213
  37. 1284
  38. 748
  39. 5004
  40. 1155

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