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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 925 · 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. 1.431 × 7 =
  2. 2.811 × 8 =
  3. 3.953 × 6 =
  4. 4.578 × 9 =
  5. 5.615 × 6 =
  6. 6.507 × 5 =
  7. 7.527 × 4 =
  8. 8.709 × 3 =
  9. 9.922 × 7 =
  10. 10.751 × 7 =
  11. 11.315 × 6 =
  12. 12.921 × 3 =
  13. 13.973 × 9 =
  14. 14.647 × 5 =
  15. 15.333 × 4 =
  16. 16.579 × 7 =
  17. 17.376 × 9 =
  18. 18.942 × 3 =
  19. 19.654 × 7 =
  20. 20.399 × 6 =
  21. 21.141 × 8 =
  22. 22.723 × 8 =
  23. 23.666 × 4 =
  24. 24.134 × 9 =
  25. 25.854 × 4 =
  26. 26.751 × 3 =
  27. 27.265 × 6 =
  28. 28.754 × 7 =
  29. 29.596 × 4 =
  30. 30.243 × 4 =
  31. 31.704 × 4 =
  32. 32.568 × 3 =
  33. 33.769 × 5 =
  34. 34.344 × 6 =
  35. 35.873 × 6 =
  36. 36.292 × 7 =
  37. 37.857 × 4 =
  38. 38.909 × 4 =
  39. 39.697 × 5 =
  40. 40.393 × 5 =

Answer key

  1. 3017
  2. 6488
  3. 5718
  4. 5202
  5. 3690
  6. 2535
  7. 2108
  8. 2127
  9. 6454
  10. 5257
  11. 1890
  12. 2763
  13. 8757
  14. 3235
  15. 1332
  16. 4053
  17. 3384
  18. 2826
  19. 4578
  20. 2394
  21. 1128
  22. 5784
  23. 2664
  24. 1206
  25. 3416
  26. 2253
  27. 1590
  28. 5278
  29. 2384
  30. 972
  31. 2816
  32. 1704
  33. 3845
  34. 2064
  35. 5238
  36. 2044
  37. 3428
  38. 3636
  39. 3485
  40. 1965

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