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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 444 · 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. 1.871 × 7 =
  2. 2.671 × 3 =
  3. 3.827 × 9 =
  4. 4.924 × 7 =
  5. 5.501 × 5 =
  6. 6.543 × 4 =
  7. 7.291 × 5 =
  8. 8.698 × 9 =
  9. 9.305 × 4 =
  10. 10.437 × 6 =
  11. 11.675 × 8 =
  12. 12.509 × 5 =
  13. 13.781 × 9 =
  14. 14.729 × 6 =
  15. 15.837 × 8 =
  16. 16.582 × 9 =
  17. 17.261 × 8 =
  18. 18.436 × 8 =
  19. 19.458 × 7 =
  20. 20.333 × 7 =
  21. 21.144 × 9 =
  22. 22.726 × 5 =
  23. 23.764 × 8 =
  24. 24.661 × 6 =
  25. 25.974 × 8 =
  26. 26.852 × 8 =
  27. 27.309 × 9 =
  28. 28.629 × 9 =
  29. 29.152 × 4 =
  30. 30.631 × 7 =
  31. 31.621 × 6 =
  32. 32.355 × 4 =
  33. 33.177 × 7 =
  34. 34.278 × 4 =
  35. 35.506 × 5 =
  36. 36.405 × 9 =
  37. 37.363 × 7 =
  38. 38.967 × 4 =
  39. 39.196 × 5 =
  40. 40.353 × 4 =

Answer key

  1. 6097
  2. 2013
  3. 7443
  4. 6468
  5. 2505
  6. 2172
  7. 1455
  8. 6282
  9. 1220
  10. 2622
  11. 5400
  12. 2545
  13. 7029
  14. 4374
  15. 6696
  16. 5238
  17. 2088
  18. 3488
  19. 3206
  20. 2331
  21. 1296
  22. 3630
  23. 6112
  24. 3966
  25. 7792
  26. 6816
  27. 2781
  28. 5661
  29. 608
  30. 4417
  31. 3726
  32. 1420
  33. 1239
  34. 1112
  35. 2530
  36. 3645
  37. 2541
  38. 3868
  39. 980
  40. 1412

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