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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 276 · 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. 1.702 × 3 =
  2. 2.836 × 9 =
  3. 3.907 × 9 =
  4. 4.891 × 3 =
  5. 5.799 × 8 =
  6. 6.358 × 6 =
  7. 7.637 × 6 =
  8. 8.224 × 9 =
  9. 9.954 × 6 =
  10. 10.381 × 6 =
  11. 11.191 × 3 =
  12. 12.513 × 3 =
  13. 13.151 × 6 =
  14. 14.568 × 9 =
  15. 15.926 × 8 =
  16. 16.731 × 6 =
  17. 17.274 × 8 =
  18. 18.324 × 3 =
  19. 19.673 × 5 =
  20. 20.178 × 4 =
  21. 21.171 × 5 =
  22. 22.613 × 8 =
  23. 23.952 × 8 =
  24. 24.784 × 6 =
  25. 25.375 × 3 =
  26. 26.688 × 8 =
  27. 27.412 × 4 =
  28. 28.809 × 6 =
  29. 29.483 × 4 =
  30. 30.128 × 3 =
  31. 31.823 × 8 =
  32. 32.685 × 5 =
  33. 33.142 × 3 =
  34. 34.187 × 3 =
  35. 35.561 × 3 =
  36. 36.934 × 4 =
  37. 37.951 × 9 =
  38. 38.187 × 7 =
  39. 39.864 × 5 =
  40. 40.493 × 9 =

Answer key

  1. 2106
  2. 7524
  3. 8163
  4. 2673
  5. 6392
  6. 2148
  7. 3822
  8. 2016
  9. 5724
  10. 2286
  11. 573
  12. 1539
  13. 906
  14. 5112
  15. 7408
  16. 4386
  17. 2192
  18. 972
  19. 3365
  20. 712
  21. 855
  22. 4904
  23. 7616
  24. 4704
  25. 1125
  26. 5504
  27. 1648
  28. 4854
  29. 1932
  30. 384
  31. 6584
  32. 3425
  33. 426
  34. 561
  35. 1683
  36. 3736
  37. 8559
  38. 1309
  39. 4320
  40. 4437

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