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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 715 · 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. 1.134 × 3 =
  2. 2.747 × 6 =
  3. 3.479 × 3 =
  4. 4.968 × 4 =
  5. 5.148 × 9 =
  6. 6.178 × 7 =
  7. 7.551 × 9 =
  8. 8.584 × 6 =
  9. 9.836 × 8 =
  10. 10.479 × 8 =
  11. 11.528 × 6 =
  12. 12.203 × 5 =
  13. 13.283 × 7 =
  14. 14.325 × 6 =
  15. 15.781 × 8 =
  16. 16.138 × 6 =
  17. 17.768 × 7 =
  18. 18.709 × 6 =
  19. 19.365 × 3 =
  20. 20.638 × 3 =
  21. 21.657 × 4 =
  22. 22.339 × 9 =
  23. 23.124 × 5 =
  24. 24.427 × 9 =
  25. 25.628 × 8 =
  26. 26.901 × 8 =
  27. 27.235 × 6 =
  28. 28.913 × 7 =
  29. 29.561 × 6 =
  30. 30.631 × 6 =
  31. 31.211 × 5 =
  32. 32.866 × 4 =
  33. 33.908 × 3 =
  34. 34.155 × 4 =
  35. 35.911 × 3 =
  36. 36.433 × 4 =
  37. 37.676 × 8 =
  38. 38.961 × 5 =
  39. 39.261 × 5 =
  40. 40.602 × 8 =

Answer key

  1. 402
  2. 4482
  3. 1437
  4. 3872
  5. 1332
  6. 1246
  7. 4959
  8. 3504
  9. 6688
  10. 3832
  11. 3168
  12. 1015
  13. 1981
  14. 1950
  15. 6248
  16. 828
  17. 5376
  18. 4254
  19. 1095
  20. 1914
  21. 2628
  22. 3051
  23. 620
  24. 3843
  25. 5024
  26. 7208
  27. 1410
  28. 6391
  29. 3366
  30. 3786
  31. 1055
  32. 3464
  33. 2724
  34. 620
  35. 2733
  36. 1732
  37. 5408
  38. 4805
  39. 1305
  40. 4816

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