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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 669 · 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. 1.432 × 6 =
  2. 2.578 × 3 =
  3. 3.261 × 4 =
  4. 4.248 × 8 =
  5. 5.595 × 3 =
  6. 6.269 × 9 =
  7. 7.302 × 6 =
  8. 8.221 × 5 =
  9. 9.261 × 9 =
  10. 10.702 × 4 =
  11. 11.248 × 9 =
  12. 12.428 × 3 =
  13. 13.464 × 8 =
  14. 14.158 × 3 =
  15. 15.806 × 6 =
  16. 16.384 × 8 =
  17. 17.134 × 4 =
  18. 18.235 × 6 =
  19. 19.714 × 9 =
  20. 20.457 × 5 =
  21. 21.392 × 4 =
  22. 22.645 × 6 =
  23. 23.381 × 4 =
  24. 24.685 × 8 =
  25. 25.264 × 5 =
  26. 26.671 × 9 =
  27. 27.371 × 6 =
  28. 28.151 × 4 =
  29. 29.836 × 4 =
  30. 30.897 × 3 =
  31. 31.343 × 5 =
  32. 32.793 × 4 =
  33. 33.497 × 3 =
  34. 34.751 × 3 =
  35. 35.421 × 6 =
  36. 36.188 × 4 =
  37. 37.235 × 3 =
  38. 38.467 × 5 =
  39. 39.797 × 9 =
  40. 40.189 × 4 =

Answer key

  1. 2592
  2. 1734
  3. 1044
  4. 1984
  5. 1785
  6. 2421
  7. 1812
  8. 1105
  9. 2349
  10. 2808
  11. 2232
  12. 1284
  13. 3712
  14. 474
  15. 4836
  16. 3072
  17. 536
  18. 1410
  19. 6426
  20. 2285
  21. 1568
  22. 3870
  23. 1524
  24. 5480
  25. 1320
  26. 6039
  27. 2226
  28. 604
  29. 3344
  30. 2691
  31. 1715
  32. 3172
  33. 1491
  34. 2253
  35. 2526
  36. 752
  37. 705
  38. 2335
  39. 7173
  40. 756

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