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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 788 · 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. 1.15 × 13 =
  2. 2.32 + 29 + 14 + 44 =
  3. 3.186 + 68 =
  4. 4.22 × 15 =
  5. 5.8 × 15 =
  6. 6.580 ÷ 5 =
  7. 7.77 × 4 =
  8. 8.1450 ÷ 50 =
  9. 9.Check with nines: 89 × 88 = 7832. Correct or wrong? (a) wrong (b) correct
  10. 10.370 + 69 =
  11. 11.249 − 26 =
  12. 12.₹76.60 + ₹44.30 =
  13. 13.₹88.55 + ₹34.60 =
  14. 14.25% of 500 =
  15. 15.17 × 14 =
  16. 16.21 × 15 =
  17. 17.₹9.35 + ₹20.30 =
  18. 18.64 × 15 =
  19. 19.₹48.55 − ₹28.35 =
  20. 20.58 × 15 =
  21. 21.49² =
  22. 22.50% of 790 =
  23. 23.42 × 5 =
  24. 24.54 × 50 =
  25. 25.297 − 88 =
  26. 26.₹42.80 − ₹8.35 =
  27. 27.79² =
  28. 28.5 + 5 + 4 + 4 + 5 =
  29. 29.9 × 15 =
  30. 30.₹9.65 + ₹6.70 =
  31. 31.Best estimate of 902 × 6? (a) 5400 (b) 10800 (c) 54000 (d) 540
  32. 32.50 + 65 + 34 + 57 =
  33. 33.358 − 38 =
  34. 34.25% of 650 =
  35. 35.22 × 15 =
  36. 36.25% of 260 =
  37. 37.5% of 150 =
  38. 38.Check with nines: 426 + 128 = 546. Correct or wrong? (a) wrong (b) correct
  39. 39.950 ÷ 50 =
  40. 40.216 + 67 =

Answer key

  1. 195
  2. 119
  3. 254
  4. 330
  5. 120
  6. 116
  7. 308
  8. 29
  9. correct
  10. 439
  11. 223
  12. 120.9
  13. 123.15
  14. 125
  15. 238
  16. 315
  17. 29.65
  18. 960
  19. 20.2
  20. 870
  21. 2401
  22. 395
  23. 210
  24. 2700
  25. 209
  26. 34.45
  27. 6241
  28. 23
  29. 135
  30. 16.35
  31. 5400
  32. 206
  33. 320
  34. 162.5
  35. 330
  36. 65
  37. 7.5
  38. wrong
  39. 19
  40. 283

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