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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 213 · 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. 1.113 × 4 =
  2. 2.636 × 4 =
  3. 3.582 × 9 =
  4. 4.262 × 4 =
  5. 5.836 × 3 =
  6. 6.281 × 8 =
  7. 7.217 × 3 =
  8. 8.466 × 4 =
  9. 9.556 × 3 =
  10. 10.132 × 3 =
  11. 11.534 × 4 =
  12. 12.273 × 9 =
  13. 13.221 × 7 =
  14. 14.384 × 8 =
  15. 15.297 × 5 =
  16. 16.126 × 4 =
  17. 17.686 × 7 =
  18. 18.838 × 7 =
  19. 19.321 × 4 =
  20. 20.272 × 9 =
  21. 21.718 × 6 =
  22. 22.184 × 8 =
  23. 23.692 × 3 =
  24. 24.218 × 5 =
  25. 25.571 × 8 =
  26. 26.973 × 5 =
  27. 27.337 × 5 =
  28. 28.431 × 9 =
  29. 29.711 × 6 =
  30. 30.556 × 4 =
  31. 31.634 × 7 =
  32. 32.808 × 6 =
  33. 33.918 × 5 =
  34. 34.906 × 6 =
  35. 35.728 × 4 =
  36. 36.251 × 5 =
  37. 37.372 × 3 =
  38. 38.587 × 8 =
  39. 39.261 × 6 =
  40. 40.125 × 8 =

Answer key

  1. 452
  2. 2544
  3. 5238
  4. 1048
  5. 2508
  6. 2248
  7. 651
  8. 1864
  9. 1668
  10. 396
  11. 2136
  12. 2457
  13. 1547
  14. 3072
  15. 1485
  16. 504
  17. 4802
  18. 5866
  19. 1284
  20. 2448
  21. 4308
  22. 1472
  23. 2076
  24. 1090
  25. 4568
  26. 4865
  27. 1685
  28. 3879
  29. 4266
  30. 2224
  31. 4438
  32. 4848
  33. 4590
  34. 5436
  35. 2912
  36. 1255
  37. 1116
  38. 4696
  39. 1566
  40. 1000

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