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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 917 · 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. 1.559 × 4 =
  2. 2.201 × 3 =
  3. 3.319 × 4 =
  4. 4.528 × 7 =
  5. 5.718 × 9 =
  6. 6.151 × 3 =
  7. 7.597 × 7 =
  8. 8.322 × 9 =
  9. 9.668 × 6 =
  10. 10.685 × 8 =
  11. 11.715 × 6 =
  12. 12.544 × 5 =
  13. 13.529 × 4 =
  14. 14.519 × 5 =
  15. 15.447 × 9 =
  16. 16.381 × 8 =
  17. 17.234 × 5 =
  18. 18.311 × 5 =
  19. 19.495 × 6 =
  20. 20.219 × 7 =
  21. 21.189 × 3 =
  22. 22.929 × 5 =
  23. 23.399 × 9 =
  24. 24.145 × 7 =
  25. 25.883 × 6 =
  26. 26.182 × 4 =
  27. 27.409 × 3 =
  28. 28.729 × 5 =
  29. 29.513 × 5 =
  30. 30.401 × 6 =
  31. 31.732 × 3 =
  32. 32.856 × 7 =
  33. 33.176 × 3 =
  34. 34.131 × 3 =
  35. 35.321 × 6 =
  36. 36.606 × 9 =
  37. 37.376 × 8 =
  38. 38.238 × 4 =
  39. 39.193 × 9 =
  40. 40.766 × 5 =

Answer key

  1. 2236
  2. 603
  3. 1276
  4. 3696
  5. 6462
  6. 453
  7. 4179
  8. 2898
  9. 4008
  10. 5480
  11. 4290
  12. 2720
  13. 2116
  14. 2595
  15. 4023
  16. 3048
  17. 1170
  18. 1555
  19. 2970
  20. 1533
  21. 567
  22. 4645
  23. 3591
  24. 1015
  25. 5298
  26. 728
  27. 1227
  28. 3645
  29. 2565
  30. 2406
  31. 2196
  32. 5992
  33. 528
  34. 393
  35. 1926
  36. 5454
  37. 3008
  38. 952
  39. 1737
  40. 3830

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