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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 428 · 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. 1.781 × 8 =
  2. 2.229 × 9 =
  3. 3.631 × 3 =
  4. 4.944 × 3 =
  5. 5.594 × 5 =
  6. 6.268 × 3 =
  7. 7.871 × 4 =
  8. 8.802 × 4 =
  9. 9.281 × 8 =
  10. 10.735 × 5 =
  11. 11.251 × 6 =
  12. 12.938 × 6 =
  13. 13.494 × 5 =
  14. 14.156 × 8 =
  15. 15.679 × 4 =
  16. 16.878 × 7 =
  17. 17.847 × 8 =
  18. 18.924 × 5 =
  19. 19.306 × 4 =
  20. 20.288 × 7 =
  21. 21.519 × 8 =
  22. 22.393 × 3 =
  23. 23.213 × 6 =
  24. 24.151 × 3 =
  25. 25.359 × 8 =
  26. 26.198 × 9 =
  27. 27.884 × 3 =
  28. 28.315 × 8 =
  29. 29.417 × 5 =
  30. 30.154 × 4 =
  31. 31.322 × 5 =
  32. 32.268 × 4 =
  33. 33.793 × 4 =
  34. 34.226 × 5 =
  35. 35.183 × 8 =
  36. 36.265 × 3 =
  37. 37.366 × 8 =
  38. 38.274 × 5 =
  39. 39.821 × 8 =
  40. 40.745 × 6 =

Answer key

  1. 6248
  2. 2061
  3. 1893
  4. 2832
  5. 2970
  6. 804
  7. 3484
  8. 3208
  9. 2248
  10. 3675
  11. 1506
  12. 5628
  13. 2470
  14. 1248
  15. 2716
  16. 6146
  17. 6776
  18. 4620
  19. 1224
  20. 2016
  21. 4152
  22. 1179
  23. 1278
  24. 453
  25. 2872
  26. 1782
  27. 2652
  28. 2520
  29. 2085
  30. 616
  31. 1610
  32. 1072
  33. 3172
  34. 1130
  35. 1464
  36. 795
  37. 2928
  38. 1370
  39. 6568
  40. 4470

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