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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 967 · 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. 1.128 × 5 =
  2. 2.301 × 6 =
  3. 3.445 × 6 =
  4. 4.384 × 4 =
  5. 5.792 × 4 =
  6. 6.826 × 4 =
  7. 7.804 × 5 =
  8. 8.349 × 4 =
  9. 9.683 × 3 =
  10. 10.112 × 5 =
  11. 11.172 × 8 =
  12. 12.231 × 4 =
  13. 13.388 × 9 =
  14. 14.553 × 9 =
  15. 15.949 × 4 =
  16. 16.755 × 4 =
  17. 17.984 × 6 =
  18. 18.184 × 8 =
  19. 19.316 × 3 =
  20. 20.318 × 9 =
  21. 21.662 × 3 =
  22. 22.287 × 7 =
  23. 23.606 × 8 =
  24. 24.409 × 6 =
  25. 25.725 × 9 =
  26. 26.233 × 4 =
  27. 27.755 × 3 =
  28. 28.408 × 7 =
  29. 29.755 × 7 =
  30. 30.181 × 6 =
  31. 31.688 × 9 =
  32. 32.231 × 9 =
  33. 33.936 × 5 =
  34. 34.626 × 6 =
  35. 35.367 × 5 =
  36. 36.423 × 6 =
  37. 37.353 × 8 =
  38. 38.261 × 8 =
  39. 39.601 × 5 =
  40. 40.928 × 6 =

Answer key

  1. 640
  2. 1806
  3. 2670
  4. 1536
  5. 3168
  6. 3304
  7. 4020
  8. 1396
  9. 2049
  10. 560
  11. 1376
  12. 924
  13. 3492
  14. 4977
  15. 3796
  16. 3020
  17. 5904
  18. 1472
  19. 948
  20. 2862
  21. 1986
  22. 2009
  23. 4848
  24. 2454
  25. 6525
  26. 932
  27. 2265
  28. 2856
  29. 5285
  30. 1086
  31. 6192
  32. 2079
  33. 4680
  34. 3756
  35. 1835
  36. 2538
  37. 2824
  38. 2088
  39. 3005
  40. 5568

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