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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 961 · 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. 1.14 × 19 =
  2. 2.₹30.60 + ₹42.80 =
  3. 3.39² =
  4. 4.41 + 41 + 41 + 62 =
  5. 5.89² =
  6. 6.166 − 97 =
  7. 7.19 × 14 =
  8. 8.321 + 57 =
  9. 9.20% of 780 =
  10. 10.490 + 97 =
  11. 11.16 × 14 =
  12. 12.₹49.20 − ₹41.95 =
  13. 13.20% of 880 =
  14. 14.Best estimate of 59 × 49? (a) 3000 (b) 6000 (c) 300 (d) 30000
  15. 15.91² =
  16. 16.18 + 18 + 59 + 72 =
  17. 17.11 × 15 =
  18. 18.120 − 99 =
  19. 19.16 × 15 =
  20. 20.1% of 120 =
  21. 21.120 × 4 =
  22. 22.₹50.85 + ₹8.65 =
  23. 23.93 × 50 =
  24. 24.5% of 80 =
  25. 25.19² =
  26. 26.₹29.95 + ₹6.05 =
  27. 27.Best estimate of 58 × 49? (a) 6000 (b) 30000 (c) 300 (d) 3000
  28. 28.1 + 7 + 9 + 8 =
  29. 29.71 + 79 + 63 + 67 =
  30. 30.2 + 1 + 8 + 7 =
  31. 31.₹70.45 − ₹42.35 =
  32. 32.478 + 78 =
  33. 33.78 + 61 + 55 + 34 =
  34. 34.21 × 15 =
  35. 35.237 − 37 =
  36. 36.93 × 50 =
  37. 37.5% of 120 =
  38. 38.Best estimate of 58 × 71? (a) 420 (b) 42000 (c) 8400 (d) 4200
  39. 39.387 + 77 =
  40. 40.4 + 6 + 9 + 6 + 4 =

Answer key

  1. 266
  2. 73.4
  3. 1521
  4. 185
  5. 7921
  6. 69
  7. 266
  8. 378
  9. 156
  10. 587
  11. 224
  12. 7.25
  13. 176
  14. 3000
  15. 8281
  16. 167
  17. 165
  18. 21
  19. 240
  20. 1.2
  21. 480
  22. 59.5
  23. 4650
  24. 4
  25. 361
  26. 36
  27. 3000
  28. 25
  29. 280
  30. 18
  31. 28.1
  32. 556
  33. 228
  34. 315
  35. 200
  36. 4650
  37. 6
  38. 4200
  39. 464
  40. 29

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