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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 620 · 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.₹6.05 + ₹44.95 =
  2. 2.6 + 9 + 7 + 3 =
  3. 3.49 × 5 =
  4. 4.41² =
  5. 5.12 × 14 =
  6. 6.11 × 19 =
  7. 7.₹46.30 − ₹27.35 =
  8. 8.50 + 99 =
  9. 9.19² =
  10. 10.550 ÷ 50 =
  11. 11.59² =
  12. 12.65 + 98 =
  13. 13.Best estimate of 303 × 8? (a) 4800 (b) 24000 (c) 240 (d) 2400
  14. 14.3 + 6 + 6 + 1 + 4 =
  15. 15.90 × 4 =
  16. 16.37 + 66 + 31 + 42 =
  17. 17.71² =
  18. 18.₹45.50 + ₹18.65 =
  19. 19.79 + 37 + 26 + 76 =
  20. 20.373 + 19 =
  21. 21.Best estimate of 203 × 6? (a) 1200 (b) 2400 (c) 12000 (d) 120
  22. 22.76 + 88 + 44 + 79 =
  23. 23.51 × 15 =
  24. 24.321 + 87 =
  25. 25.17 × 17 =
  26. 26.Best estimate of 92 × 21? (a) 18000 (b) 180 (c) 1800 (d) 3600
  27. 27.1 + 1 + 4 + 8 + 6 =
  28. 28.Best estimate of 59 × 72? (a) 420 (b) 42000 (c) 8400 (d) 4200
  29. 29.1500 ÷ 25 =
  30. 30.53 + 52 + 85 + 45 =
  31. 31.₹47.90 + ₹22.85 =
  32. 32.42 + 79 + 83 + 33 =
  33. 33.15% of 580 =
  34. 34.1 + 4 + 6 + 9 =
  35. 35.245 ÷ 5 =
  36. 36.28 × 15 =
  37. 37.5% of 170 =
  38. 38.Check with nines: 98 × 96 = 9408. Correct or wrong? (a) wrong (b) correct
  39. 39.47 × 15 =
  40. 40.81 × 5 =

Answer key

  1. 51
  2. 25
  3. 245
  4. 1681
  5. 168
  6. 209
  7. 18.95
  8. 149
  9. 361
  10. 11
  11. 3481
  12. 163
  13. 2400
  14. 20
  15. 360
  16. 176
  17. 5041
  18. 64.15
  19. 218
  20. 392
  21. 1200
  22. 287
  23. 765
  24. 408
  25. 289
  26. 1800
  27. 20
  28. 4200
  29. 60
  30. 235
  31. 70.75
  32. 237
  33. 87
  34. 20
  35. 49
  36. 420
  37. 8.5
  38. correct
  39. 705
  40. 405

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