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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 948 · 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. 1.895 × 3 =
  2. 2.741 × 6 =
  3. 3.115 × 5 =
  4. 4.146 × 8 =
  5. 5.163 × 7 =
  6. 6.667 × 4 =
  7. 7.743 × 5 =
  8. 8.936 × 9 =
  9. 9.416 × 5 =
  10. 10.453 × 3 =
  11. 11.441 × 6 =
  12. 12.893 × 8 =
  13. 13.392 × 8 =
  14. 14.459 × 4 =
  15. 15.149 × 4 =
  16. 16.191 × 8 =
  17. 17.895 × 7 =
  18. 18.458 × 8 =
  19. 19.195 × 4 =
  20. 20.167 × 3 =
  21. 21.828 × 7 =
  22. 22.591 × 9 =
  23. 23.317 × 3 =
  24. 24.311 × 5 =
  25. 25.282 × 4 =
  26. 26.975 × 3 =
  27. 27.491 × 9 =
  28. 28.349 × 4 =
  29. 29.201 × 5 =
  30. 30.434 × 3 =
  31. 31.254 × 3 =
  32. 32.138 × 7 =
  33. 33.797 × 9 =
  34. 34.832 × 3 =
  35. 35.575 × 5 =
  36. 36.528 × 4 =
  37. 37.229 × 3 =
  38. 38.123 × 5 =
  39. 39.252 × 9 =
  40. 40.825 × 8 =

Answer key

  1. 2685
  2. 4446
  3. 575
  4. 1168
  5. 1141
  6. 2668
  7. 3715
  8. 8424
  9. 2080
  10. 1359
  11. 2646
  12. 7144
  13. 3136
  14. 1836
  15. 596
  16. 1528
  17. 6265
  18. 3664
  19. 780
  20. 501
  21. 5796
  22. 5319
  23. 951
  24. 1555
  25. 1128
  26. 2925
  27. 4419
  28. 1396
  29. 1005
  30. 1302
  31. 762
  32. 966
  33. 7173
  34. 2496
  35. 2875
  36. 2112
  37. 687
  38. 615
  39. 2268
  40. 6600

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