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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 935 · 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. 1.20 × 5 =
  2. 2.₹77.10 + ₹42.55 =
  3. 3.159 × 4 =
  4. 4.15% of 70 =
  5. 5.59 × 15 =
  6. 6.14 × 50 =
  7. 7.9 + 6 + 1 + 4 + 2 =
  8. 8.15% of 320 =
  9. 9.6 × 15 =
  10. 10.₹74.80 + ₹42.70 =
  11. 11.5 × 15 =
  12. 12.24 + 81 + 85 + 58 =
  13. 13.₹94.35 − ₹10.90 =
  14. 14.42 × 5 =
  15. 15.27 × 8 =
  16. 16.Best estimate of 28 × 19? (a) 60 (b) 1200 (c) 600 (d) 6000
  17. 17.₹97.60 − ₹12.25 =
  18. 18.33 × 5 =
  19. 19.7 + 4 + 4 + 6 =
  20. 20.8 + 3 + 5 + 9 + 2 =
  21. 21.₹44.25 + ₹11.15 =
  22. 22.199 + 78 =
  23. 23.18 × 8 =
  24. 24.Check with nines: 59 × 89 = 5251. Correct or wrong? (a) wrong (b) correct
  25. 25.63 × 15 =
  26. 26.39 + 73 + 35 + 18 =
  27. 27.91² =
  28. 28.52 × 4 =
  29. 29.₹51.80 + ₹7.10 =
  30. 30.46 × 50 =
  31. 31.11 × 13 =
  32. 32.16 × 16 =
  33. 33.10% of 590 =
  34. 34.224 + 48 =
  35. 35.46 × 8 =
  36. 36.79² =
  37. 37.402 − 16 =
  38. 38.223 + 67 =
  39. 39.Check with nines: 797 + 850 = 1647. Correct or wrong? (a) wrong (b) correct
  40. 40.Check with nines: 700 + 663 = 1363. Correct or wrong? (a) correct (b) wrong

Answer key

  1. 100
  2. 119.65
  3. 636
  4. 10.5
  5. 885
  6. 700
  7. 22
  8. 48
  9. 90
  10. 117.5
  11. 75
  12. 248
  13. 83.45
  14. 210
  15. 216
  16. 600
  17. 85.35
  18. 165
  19. 21
  20. 27
  21. 55.4
  22. 277
  23. 144
  24. correct
  25. 945
  26. 165
  27. 8281
  28. 208
  29. 58.9
  30. 2300
  31. 143
  32. 256
  33. 59
  34. 272
  35. 368
  36. 6241
  37. 386
  38. 290
  39. correct
  40. correct

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