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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 847 · 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. 1.868 × 9 =
  2. 2.903 × 8 =
  3. 3.415 × 9 =
  4. 4.127 × 3 =
  5. 5.397 × 4 =
  6. 6.237 × 3 =
  7. 7.301 × 5 =
  8. 8.321 × 3 =
  9. 9.553 × 3 =
  10. 10.307 × 4 =
  11. 11.455 × 3 =
  12. 12.667 × 3 =
  13. 13.319 × 9 =
  14. 14.938 × 6 =
  15. 15.122 × 7 =
  16. 16.474 × 8 =
  17. 17.505 × 8 =
  18. 18.187 × 8 =
  19. 19.506 × 3 =
  20. 20.238 × 4 =
  21. 21.481 × 5 =
  22. 22.296 × 4 =
  23. 23.139 × 4 =
  24. 24.501 × 5 =
  25. 25.147 × 6 =
  26. 26.424 × 3 =
  27. 27.261 × 3 =
  28. 28.654 × 4 =
  29. 29.731 × 3 =
  30. 30.612 × 7 =
  31. 31.141 × 7 =
  32. 32.837 × 7 =
  33. 33.429 × 9 =
  34. 34.711 × 5 =
  35. 35.383 × 4 =
  36. 36.985 × 9 =
  37. 37.716 × 5 =
  38. 38.321 × 5 =
  39. 39.764 × 5 =
  40. 40.454 × 6 =

Answer key

  1. 7812
  2. 7224
  3. 3735
  4. 381
  5. 1588
  6. 711
  7. 1505
  8. 963
  9. 1659
  10. 1228
  11. 1365
  12. 2001
  13. 2871
  14. 5628
  15. 854
  16. 3792
  17. 4040
  18. 1496
  19. 1518
  20. 952
  21. 2405
  22. 1184
  23. 556
  24. 2505
  25. 882
  26. 1272
  27. 783
  28. 2616
  29. 2193
  30. 4284
  31. 987
  32. 5859
  33. 3861
  34. 3555
  35. 1532
  36. 8865
  37. 3580
  38. 1605
  39. 3820
  40. 2724

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