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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 103 · 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. 1.588 × 8 =
  2. 2.537 × 6 =
  3. 3.292 × 5 =
  4. 4.412 × 3 =
  5. 5.224 × 4 =
  6. 6.781 × 9 =
  7. 7.891 × 6 =
  8. 8.312 × 3 =
  9. 9.436 × 6 =
  10. 10.735 × 9 =
  11. 11.834 × 8 =
  12. 12.252 × 5 =
  13. 13.463 × 5 =
  14. 14.221 × 4 =
  15. 15.484 × 9 =
  16. 16.151 × 5 =
  17. 17.822 × 8 =
  18. 18.366 × 4 =
  19. 19.143 × 8 =
  20. 20.479 × 8 =
  21. 21.121 × 5 =
  22. 22.971 × 5 =
  23. 23.205 × 5 =
  24. 24.845 × 6 =
  25. 25.749 × 4 =
  26. 26.352 × 6 =
  27. 27.132 × 3 =
  28. 28.573 × 5 =
  29. 29.153 × 8 =
  30. 30.597 × 6 =
  31. 31.312 × 9 =
  32. 32.265 × 3 =
  33. 33.561 × 5 =
  34. 34.787 × 8 =
  35. 35.418 × 7 =
  36. 36.376 × 3 =
  37. 37.693 × 8 =
  38. 38.199 × 5 =
  39. 39.394 × 8 =
  40. 40.632 × 3 =

Answer key

  1. 4704
  2. 3222
  3. 1460
  4. 1236
  5. 896
  6. 7029
  7. 5346
  8. 936
  9. 2616
  10. 6615
  11. 6672
  12. 1260
  13. 2315
  14. 884
  15. 4356
  16. 755
  17. 6576
  18. 1464
  19. 1144
  20. 3832
  21. 605
  22. 4855
  23. 1025
  24. 5070
  25. 2996
  26. 2112
  27. 396
  28. 2865
  29. 1224
  30. 3582
  31. 2808
  32. 795
  33. 2805
  34. 6296
  35. 2926
  36. 1128
  37. 5544
  38. 995
  39. 3152
  40. 1896

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