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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 999 · 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. 1.10% of 390 =
  2. 2.21² =
  3. 3.182 − 16 =
  4. 4.Best estimate of 98 × 6? (a) 600 (b) 6000 (c) 60 (d) 1200
  5. 5.5 + 5 + 5 + 5 =
  6. 6.59 × 50 =
  7. 7.36 × 15 =
  8. 8.52 + 75 + 67 + 45 =
  9. 9.334 − 18 =
  10. 10.35 × 4 =
  11. 11.1% of 40 =
  12. 12.Check with nines: 900 + 408 = 1308. Correct or wrong? (a) correct (b) wrong
  13. 13.10% of 170 =
  14. 14.1% of 520 =
  15. 15.434 − 47 =
  16. 16.11 × 17 =
  17. 17.7 + 8 + 3 + 2 + 3 =
  18. 18.₹65.35 − ₹7.55 =
  19. 19.89² =
  20. 20.39 + 63 + 45 + 27 =
  21. 21.63 × 15 =
  22. 22.Check with nines: 836 + 948 = 1783. Correct or wrong? (a) correct (b) wrong
  23. 23.139 + 19 =
  24. 24.316 + 97 =
  25. 25.80 − 58 =
  26. 26.50% of 30 =
  27. 27.65 + 87 + 15 + 24 =
  28. 28.66 × 4 =
  29. 29.5% of 270 =
  30. 30.17 × 12 =
  31. 31.₹92.95 − ₹13.20 =
  32. 32.19 × 19 =
  33. 33.6 + 4 + 6 + 6 + 2 =
  34. 34.67 + 75 + 72 + 40 =
  35. 35.126 + 79 =
  36. 36.52 × 4 =
  37. 37.₹36.75 − ₹21.70 =
  38. 38.₹67.30 − ₹48.95 =
  39. 39.₹60.45 + ₹28.20 =
  40. 40.33 × 8 =

Answer key

  1. 39
  2. 441
  3. 166
  4. 600
  5. 20
  6. 2950
  7. 540
  8. 239
  9. 316
  10. 140
  11. 0.4
  12. correct
  13. 17
  14. 5.2
  15. 387
  16. 187
  17. 23
  18. 57.8
  19. 7921
  20. 174
  21. 945
  22. wrong
  23. 158
  24. 413
  25. 22
  26. 15
  27. 191
  28. 264
  29. 13.5
  30. 204
  31. 79.75
  32. 361
  33. 24
  34. 254
  35. 205
  36. 208
  37. 15.05
  38. 18.35
  39. 88.65
  40. 264

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