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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 40 · 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. 1.9 + 1 + 1 + 9 + 7 =
  2. 2.92 × 4 =
  3. 3.₹51.10 − ₹14.95 =
  4. 4.12 × 50 =
  5. 5.Best estimate of 203 × 8? (a) 16000 (b) 1600 (c) 160 (d) 3200
  6. 6.₹93.85 + ₹40.05 =
  7. 7.₹31.60 − ₹16.25 =
  8. 8.84 + 42 + 85 + 87 =
  9. 9.515 − 26 =
  10. 10.2 + 8 + 2 + 6 =
  11. 11.1 + 9 + 8 + 2 =
  12. 12.17 × 17 =
  13. 13.7 + 3 + 8 + 9 =
  14. 14.₹95.25 + ₹40.30 =
  15. 15.Check with nines: 81 × 71 = 5751. Correct or wrong? (a) wrong (b) correct
  16. 16.Check with nines: 60 × 52 = 3120. Correct or wrong? (a) wrong (b) correct
  17. 17.6 + 1 + 5 + 4 + 9 =
  18. 18.750 ÷ 5 =
  19. 19.₹53.75 + ₹26.75 =
  20. 20.10% of 790 =
  21. 21.12 × 17 =
  22. 22.39² =
  23. 23.15 + 62 + 56 + 47 =
  24. 24.572 − 47 =
  25. 25.342 + 68 =
  26. 26.395 + 27 =
  27. 27.29² =
  28. 28.197 + 78 =
  29. 29.78 + 22 + 42 + 41 =
  30. 30.82 × 50 =
  31. 31.56 + 89 =
  32. 32.20% of 190 =
  33. 33.1400 ÷ 50 =
  34. 34.53 × 15 =
  35. 35.Check with nines: 67 × 94 = 6302. Correct or wrong? (a) correct (b) wrong
  36. 36.11 × 13 =
  37. 37.50% of 150 =
  38. 38.65 × 4 =
  39. 39.133 × 4 =
  40. 40.8 + 5 + 5 + 5 =

Answer key

  1. 27
  2. 368
  3. 36.15
  4. 600
  5. 1600
  6. 133.9
  7. 15.35
  8. 298
  9. 489
  10. 18
  11. 20
  12. 289
  13. 27
  14. 135.55
  15. correct
  16. correct
  17. 25
  18. 150
  19. 80.5
  20. 79
  21. 204
  22. 1521
  23. 180
  24. 525
  25. 410
  26. 422
  27. 841
  28. 275
  29. 183
  30. 4100
  31. 145
  32. 38
  33. 28
  34. 795
  35. wrong
  36. 143
  37. 75
  38. 260
  39. 532
  40. 23

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