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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 123 · 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. 1.759 × 3 =
  2. 2.225 × 9 =
  3. 3.292 × 5 =
  4. 4.675 × 4 =
  5. 5.686 × 9 =
  6. 6.422 × 7 =
  7. 7.634 × 5 =
  8. 8.581 × 5 =
  9. 9.456 × 4 =
  10. 10.786 × 4 =
  11. 11.236 × 7 =
  12. 12.285 × 4 =
  13. 13.821 × 4 =
  14. 14.888 × 8 =
  15. 15.204 × 5 =
  16. 16.391 × 9 =
  17. 17.662 × 3 =
  18. 18.691 × 9 =
  19. 19.221 × 6 =
  20. 20.439 × 4 =
  21. 21.729 × 4 =
  22. 22.532 × 6 =
  23. 23.234 × 6 =
  24. 24.241 × 6 =
  25. 25.529 × 8 =
  26. 26.681 × 4 =
  27. 27.718 × 6 =
  28. 28.418 × 9 =
  29. 29.287 × 7 =
  30. 30.628 × 8 =
  31. 31.401 × 6 =
  32. 32.341 × 9 =
  33. 33.451 × 4 =
  34. 34.138 × 5 =
  35. 35.731 × 6 =
  36. 36.487 × 8 =
  37. 37.518 × 4 =
  38. 38.341 × 3 =
  39. 39.428 × 4 =
  40. 40.885 × 5 =

Answer key

  1. 2277
  2. 2025
  3. 1460
  4. 2700
  5. 6174
  6. 2954
  7. 3170
  8. 2905
  9. 1824
  10. 3144
  11. 1652
  12. 1140
  13. 3284
  14. 7104
  15. 1020
  16. 3519
  17. 1986
  18. 6219
  19. 1326
  20. 1756
  21. 2916
  22. 3192
  23. 1404
  24. 1446
  25. 4232
  26. 2724
  27. 4308
  28. 3762
  29. 2009
  30. 5024
  31. 2406
  32. 3069
  33. 1804
  34. 690
  35. 4386
  36. 3896
  37. 2072
  38. 1023
  39. 1712
  40. 4425

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