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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 363 · 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. 1.139 × 3 =
  2. 2.461 × 7 =
  3. 3.733 × 4 =
  4. 4.311 × 3 =
  5. 5.718 × 6 =
  6. 6.579 × 4 =
  7. 7.139 × 7 =
  8. 8.317 × 4 =
  9. 9.356 × 5 =
  10. 10.124 × 9 =
  11. 11.983 × 5 =
  12. 12.345 × 4 =
  13. 13.164 × 4 =
  14. 14.889 × 5 =
  15. 15.697 × 5 =
  16. 16.587 × 8 =
  17. 17.186 × 4 =
  18. 18.148 × 7 =
  19. 19.684 × 9 =
  20. 20.738 × 3 =
  21. 21.671 × 3 =
  22. 22.207 × 4 =
  23. 23.641 × 8 =
  24. 24.702 × 9 =
  25. 25.221 × 7 =
  26. 26.288 × 4 =
  27. 27.174 × 4 =
  28. 28.484 × 4 =
  29. 29.462 × 7 =
  30. 30.407 × 7 =
  31. 31.881 × 4 =
  32. 32.551 × 8 =
  33. 33.521 × 4 =
  34. 34.846 × 9 =
  35. 35.702 × 4 =
  36. 36.961 × 7 =
  37. 37.641 × 3 =
  38. 38.291 × 6 =
  39. 39.536 × 5 =
  40. 40.229 × 4 =

Answer key

  1. 417
  2. 3227
  3. 2932
  4. 933
  5. 4308
  6. 2316
  7. 973
  8. 1268
  9. 1780
  10. 1116
  11. 4915
  12. 1380
  13. 656
  14. 4445
  15. 3485
  16. 4696
  17. 744
  18. 1036
  19. 6156
  20. 2214
  21. 2013
  22. 828
  23. 5128
  24. 6318
  25. 1547
  26. 1152
  27. 696
  28. 1936
  29. 3234
  30. 2849
  31. 3524
  32. 4408
  33. 2084
  34. 7614
  35. 2808
  36. 6727
  37. 1923
  38. 1746
  39. 2680
  40. 916

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