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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 820 · 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. 1.93 − 17 =
  2. 2.14 × 12 =
  3. 3.Best estimate of 18 × 72? (a) 140 (b) 14000 (c) 2800 (d) 1400
  4. 4.24 + 86 + 48 + 39 =
  5. 5.₹28.05 − ₹4.90 =
  6. 6.15% of 590 =
  7. 7.₹34.35 − ₹30.30 =
  8. 8.320 − 19 =
  9. 9.₹10.65 + ₹32.45 =
  10. 10.69 × 5 =
  11. 11.47 × 5 =
  12. 12.Check with nines: 78 × 23 = 1794. Correct or wrong? (a) correct (b) wrong
  13. 13.8 + 2 + 4 + 8 =
  14. 14.25% of 220 =
  15. 15.86 × 5 =
  16. 16.19 + 76 + 75 + 87 =
  17. 17.1800 ÷ 50 =
  18. 18.₹13.80 + ₹12.90 =
  19. 19.407 + 98 =
  20. 20.1400 ÷ 50 =
  21. 21.1% of 380 =
  22. 22.71 × 50 =
  23. 23.41 × 15 =
  24. 24.16 × 18 =
  25. 25.₹73.90 + ₹41.35 =
  26. 26.₹32.15 + ₹18.20 =
  27. 27.10% of 890 =
  28. 28.25% of 730 =
  29. 29.161 + 57 =
  30. 30.576 − 59 =
  31. 31.57 × 15 =
  32. 32.119 − 67 =
  33. 33.1250 ÷ 50 =
  34. 34.300 ÷ 25 =
  35. 35.71 + 65 + 58 + 64 =
  36. 36.850 ÷ 25 =
  37. 37.160 ÷ 5 =
  38. 38.₹77.45 − ₹35.25 =
  39. 39.19 × 19 =
  40. 40.1500 ÷ 50 =

Answer key

  1. 76
  2. 168
  3. 1400
  4. 197
  5. 23.15
  6. 88.5
  7. 4.05
  8. 301
  9. 43.1
  10. 345
  11. 235
  12. correct
  13. 22
  14. 55
  15. 430
  16. 257
  17. 36
  18. 26.7
  19. 505
  20. 28
  21. 3.8
  22. 3550
  23. 615
  24. 288
  25. 115.25
  26. 50.35
  27. 89
  28. 182.5
  29. 218
  30. 517
  31. 855
  32. 52
  33. 25
  34. 12
  35. 258
  36. 34
  37. 32
  38. 42.2
  39. 361
  40. 30

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