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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 815 · 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. 1.653 × 3 =
  2. 2.429 × 8 =
  3. 3.459 × 3 =
  4. 4.183 × 5 =
  5. 5.505 × 3 =
  6. 6.968 × 8 =
  7. 7.273 × 8 =
  8. 8.502 × 5 =
  9. 9.899 × 4 =
  10. 10.701 × 7 =
  11. 11.948 × 4 =
  12. 12.197 × 4 =
  13. 13.305 × 9 =
  14. 14.353 × 5 =
  15. 15.786 × 3 =
  16. 16.432 × 4 =
  17. 17.588 × 7 =
  18. 18.958 × 6 =
  19. 19.488 × 3 =
  20. 20.753 × 4 =
  21. 21.535 × 6 =
  22. 22.152 × 5 =
  23. 23.338 × 6 =
  24. 24.982 × 9 =
  25. 25.501 × 7 =
  26. 26.552 × 8 =
  27. 27.665 × 8 =
  28. 28.583 × 5 =
  29. 29.834 × 4 =
  30. 30.204 × 7 =
  31. 31.326 × 3 =
  32. 32.768 × 8 =
  33. 33.754 × 9 =
  34. 34.199 × 5 =
  35. 35.408 × 4 =
  36. 36.228 × 5 =
  37. 37.389 × 3 =
  38. 38.145 × 7 =
  39. 39.863 × 8 =
  40. 40.508 × 8 =

Answer key

  1. 1959
  2. 3432
  3. 1377
  4. 915
  5. 1515
  6. 7744
  7. 2184
  8. 2510
  9. 3596
  10. 4907
  11. 3792
  12. 788
  13. 2745
  14. 1765
  15. 2358
  16. 1728
  17. 4116
  18. 5748
  19. 1464
  20. 3012
  21. 3210
  22. 760
  23. 2028
  24. 8838
  25. 3507
  26. 4416
  27. 5320
  28. 2915
  29. 3336
  30. 1428
  31. 978
  32. 6144
  33. 6786
  34. 995
  35. 1632
  36. 1140
  37. 1167
  38. 1015
  39. 6904
  40. 4064

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