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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 557 · 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. 1.151 × 5 =
  2. 2.254 × 5 =
  3. 3.827 × 7 =
  4. 4.361 × 9 =
  5. 5.631 × 4 =
  6. 6.369 × 5 =
  7. 7.448 × 7 =
  8. 8.932 × 4 =
  9. 9.261 × 6 =
  10. 10.971 × 8 =
  11. 11.554 × 6 =
  12. 12.455 × 3 =
  13. 13.532 × 5 =
  14. 14.971 × 4 =
  15. 15.743 × 8 =
  16. 16.715 × 3 =
  17. 17.889 × 3 =
  18. 18.149 × 4 =
  19. 19.149 × 9 =
  20. 20.437 × 6 =
  21. 21.837 × 9 =
  22. 22.772 × 5 =
  23. 23.483 × 7 =
  24. 24.224 × 3 =
  25. 25.657 × 7 =
  26. 26.196 × 4 =
  27. 27.481 × 5 =
  28. 28.475 × 3 =
  29. 29.428 × 4 =
  30. 30.306 × 8 =
  31. 31.459 × 5 =
  32. 32.747 × 3 =
  33. 33.601 × 4 =
  34. 34.125 × 3 =
  35. 35.282 × 8 =
  36. 36.954 × 5 =
  37. 37.835 × 8 =
  38. 38.824 × 5 =
  39. 39.718 × 4 =
  40. 40.839 × 6 =

Answer key

  1. 755
  2. 1270
  3. 5789
  4. 3249
  5. 2524
  6. 1845
  7. 3136
  8. 3728
  9. 1566
  10. 7768
  11. 3324
  12. 1365
  13. 2660
  14. 3884
  15. 5944
  16. 2145
  17. 2667
  18. 596
  19. 1341
  20. 2622
  21. 7533
  22. 3860
  23. 3381
  24. 672
  25. 4599
  26. 784
  27. 2405
  28. 1425
  29. 1712
  30. 2448
  31. 2295
  32. 2241
  33. 2404
  34. 375
  35. 2256
  36. 4770
  37. 6680
  38. 4120
  39. 2872
  40. 5034

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