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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 847 · 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.₹40.40 − ₹24.30 =
  2. 2.20% of 260 =
  3. 3.30 × 15 =
  4. 4.15% of 220 =
  5. 5.93 × 50 =
  6. 6.15 × 5 =
  7. 7.59² =
  8. 8.Best estimate of 31 × 41? (a) 2400 (b) 1200 (c) 12000 (d) 120
  9. 9.Best estimate of 79 × 39? (a) 32000 (b) 6400 (c) 320 (d) 3200
  10. 10.104 − 47 =
  11. 11.19 × 8 =
  12. 12.Best estimate of 399 × 5? (a) 200 (b) 4000 (c) 2000 (d) 20000
  13. 13.1 + 6 + 3 + 9 =
  14. 14.12 × 16 =
  15. 15.₹29.35 + ₹19.60 =
  16. 16.94 × 50 =
  17. 17.40 + 68 + 44 + 16 =
  18. 18.38 × 5 =
  19. 19.25 × 4 =
  20. 20.Best estimate of 397 × 3? (a) 120 (b) 2400 (c) 1200 (d) 12000
  21. 21.₹26.25 − ₹13.70 =
  22. 22.52 + 74 + 14 + 20 =
  23. 23.71 × 5 =
  24. 24.1400 ÷ 50 =
  25. 25.13 × 19 =
  26. 26.75 × 50 =
  27. 27.535 − 56 =
  28. 28.182 − 29 =
  29. 29.129 − 16 =
  30. 30.1650 ÷ 50 =
  31. 31.246 − 36 =
  32. 32.14 × 17 =
  33. 33.950 ÷ 25 =
  34. 34.19 × 15 =
  35. 35.28 × 8 =
  36. 36.5% of 60 =
  37. 37.Best estimate of 48 × 91? (a) 4500 (b) 9000 (c) 450 (d) 45000
  38. 38.805 ÷ 5 =
  39. 39.25% of 900 =
  40. 40.579 − 87 =

Answer key

  1. 16.1
  2. 52
  3. 450
  4. 33
  5. 4650
  6. 75
  7. 3481
  8. 1200
  9. 3200
  10. 57
  11. 152
  12. 2000
  13. 19
  14. 192
  15. 48.95
  16. 4700
  17. 168
  18. 190
  19. 100
  20. 1200
  21. 12.55
  22. 160
  23. 355
  24. 28
  25. 247
  26. 3750
  27. 479
  28. 153
  29. 113
  30. 33
  31. 210
  32. 238
  33. 38
  34. 285
  35. 224
  36. 3
  37. 4500
  38. 161
  39. 225
  40. 492

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