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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 596 · 40 questions
TalentJR

The fast method (Spot the trick): A 7, 8 or 9 in the ones place → round and fix. × 4, 8, 5, 50 or 15 → doubling or halving tricks. ÷ 5, 25 or 50 → double first. A percentage → start from 10%. Checking or estimating → nines or rounding.

NameDateTime takenScore ___ / 40
  1. 1.845 ÷ 5 =
  2. 2.10% of 390 =
  3. 3.425 ÷ 25 =
  4. 4.Best estimate of 103 × 4? (a) 4000 (b) 800 (c) 400 (d) 40
  5. 5.30 × 5 =
  6. 6.361 + 37 =
  7. 7.20 × 5 =
  8. 8.255 + 99 =
  9. 9.12 × 18 =
  10. 10.Check with nines: 855 + 766 = 1616. Correct or wrong? (a) wrong (b) correct
  11. 11.337 − 56 =
  12. 12.41² =
  13. 13.₹9.60 + ₹19.15 =
  14. 14.317 + 97 =
  15. 15.11 × 12 =
  16. 16.1500 ÷ 50 =
  17. 17.Best estimate of 79 × 22? (a) 160 (b) 16000 (c) 3200 (d) 1600
  18. 18.310 ÷ 5 =
  19. 19.51² =
  20. 20.39 × 15 =
  21. 21.6 + 4 + 4 + 5 =
  22. 22.₹84.60 + ₹3.05 =
  23. 23.8 + 1 + 9 + 2 =
  24. 24.310 + 19 =
  25. 25.₹24.10 + ₹34.95 =
  26. 26.5% of 50 =
  27. 27.₹34.15 − ₹15.10 =
  28. 28.₹46.55 − ₹17.25 =
  29. 29.147 × 4 =
  30. 30.19 × 16 =
  31. 31.91² =
  32. 32.43 × 15 =
  33. 33.Check with nines: 185 + 905 = 1088. Correct or wrong? (a) wrong (b) correct
  34. 34.18 × 13 =
  35. 35.13 × 15 =
  36. 36.115 + 98 =
  37. 37.13 × 14 =
  38. 38.38 × 8 =
  39. 39.50% of 530 =
  40. 40.1% of 710 =

Answer key

  1. 169
  2. 39
  3. 17
  4. 400
  5. 150
  6. 398
  7. 100
  8. 354
  9. 216
  10. wrong
  11. 281
  12. 1681
  13. 28.75
  14. 414
  15. 132
  16. 30
  17. 1600
  18. 62
  19. 2601
  20. 585
  21. 19
  22. 87.65
  23. 20
  24. 329
  25. 59.05
  26. 2.5
  27. 19.05
  28. 29.3
  29. 588
  30. 304
  31. 8281
  32. 645
  33. wrong
  34. 234
  35. 195
  36. 213
  37. 182
  38. 304
  39. 265
  40. 7.1

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