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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 368 · 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. 1.1 + 3 + 7 + 9 + 7 =
  2. 2.52 + 83 + 47 + 13 =
  3. 3.Check with nines: 39 × 39 = 1524. Correct or wrong? (a) correct (b) wrong
  4. 4.700 ÷ 5 =
  5. 5.75 × 50 =
  6. 6.18 × 17 =
  7. 7.30 × 4 =
  8. 8.122 × 4 =
  9. 9.45 × 8 =
  10. 10.20% of 820 =
  11. 11.20% of 370 =
  12. 12.111 × 4 =
  13. 13.99 × 4 =
  14. 14.9 + 1 + 2 + 2 =
  15. 15.49 × 8 =
  16. 16.479 + 69 =
  17. 17.16 × 11 =
  18. 18.₹40.05 − ₹29.20 =
  19. 19.302 + 28 =
  20. 20.12 × 19 =
  21. 21.16 × 13 =
  22. 22.700 ÷ 50 =
  23. 23.50% of 170 =
  24. 24.17 × 17 =
  25. 25.6 + 3 + 3 + 7 =
  26. 26.128 × 4 =
  27. 27.356 + 37 =
  28. 28.1 + 5 + 7 + 5 + 5 =
  29. 29.400 − 36 =
  30. 30.173 − 97 =
  31. 31.19 × 15 =
  32. 32.97 × 5 =
  33. 33.62 × 8 =
  34. 34.64 × 5 =
  35. 35.59 × 15 =
  36. 36.38 × 15 =
  37. 37.32 + 46 + 25 + 15 =
  38. 38.6 + 8 + 7 + 8 + 3 =
  39. 39.38 × 8 =
  40. 40.Best estimate of 99 × 8? (a) 8000 (b) 800 (c) 80 (d) 1600

Answer key

  1. 27
  2. 195
  3. wrong
  4. 140
  5. 3750
  6. 306
  7. 120
  8. 488
  9. 360
  10. 164
  11. 74
  12. 444
  13. 396
  14. 14
  15. 392
  16. 548
  17. 176
  18. 10.85
  19. 330
  20. 228
  21. 208
  22. 14
  23. 85
  24. 289
  25. 19
  26. 512
  27. 393
  28. 23
  29. 364
  30. 76
  31. 285
  32. 485
  33. 496
  34. 320
  35. 885
  36. 570
  37. 118
  38. 32
  39. 304
  40. 800

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