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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 244 · 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. 1.429 × 3 =
  2. 2.521 × 4 =
  3. 3.931 × 6 =
  4. 4.821 × 3 =
  5. 5.492 × 4 =
  6. 6.814 × 8 =
  7. 7.634 × 4 =
  8. 8.612 × 7 =
  9. 9.311 × 8 =
  10. 10.457 × 7 =
  11. 11.308 × 7 =
  12. 12.171 × 5 =
  13. 13.117 × 5 =
  14. 14.489 × 7 =
  15. 15.434 × 4 =
  16. 16.776 × 3 =
  17. 17.968 × 4 =
  18. 18.139 × 7 =
  19. 19.329 × 5 =
  20. 20.585 × 3 =
  21. 21.944 × 3 =
  22. 22.458 × 4 =
  23. 23.931 × 8 =
  24. 24.973 × 3 =
  25. 25.841 × 3 =
  26. 26.282 × 8 =
  27. 27.546 × 7 =
  28. 28.649 × 4 =
  29. 29.953 × 3 =
  30. 30.405 × 4 =
  31. 31.471 × 9 =
  32. 32.989 × 6 =
  33. 33.892 × 4 =
  34. 34.599 × 8 =
  35. 35.611 × 7 =
  36. 36.857 × 8 =
  37. 37.231 × 3 =
  38. 38.771 × 9 =
  39. 39.292 × 4 =
  40. 40.928 × 9 =

Answer key

  1. 1287
  2. 2084
  3. 5586
  4. 2463
  5. 1968
  6. 6512
  7. 2536
  8. 4284
  9. 2488
  10. 3199
  11. 2156
  12. 855
  13. 585
  14. 3423
  15. 1736
  16. 2328
  17. 3872
  18. 973
  19. 1645
  20. 1755
  21. 2832
  22. 1832
  23. 7448
  24. 2919
  25. 2523
  26. 2256
  27. 3822
  28. 2596
  29. 2859
  30. 1620
  31. 4239
  32. 5934
  33. 3568
  34. 4792
  35. 4277
  36. 6856
  37. 693
  38. 6939
  39. 1168
  40. 8352

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