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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 938 · 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. 1.89 + 28 + 86 + 12 =
  2. 2.73 × 8 =
  3. 3.920 ÷ 5 =
  4. 4.160 + 88 =
  5. 5.472 − 58 =
  6. 6.Check with nines: 30 × 66 = 1973. Correct or wrong? (a) correct (b) wrong
  7. 7.388 − 18 =
  8. 8.₹14.05 − ₹2.80 =
  9. 9.₹68.05 + ₹44.20 =
  10. 10.Check with nines: 826 + 299 = 1125. Correct or wrong? (a) wrong (b) correct
  11. 11.₹49.75 + ₹27.30 =
  12. 12.₹42.55 − ₹19.30 =
  13. 13.34 × 5 =
  14. 14.313 − 79 =
  15. 15.125 − 86 =
  16. 16.7 + 6 + 3 + 3 + 8 =
  17. 17.572 − 47 =
  18. 18.5% of 160 =
  19. 19.1800 ÷ 50 =
  20. 20.Check with nines: 94 × 78 = 7327. Correct or wrong? (a) correct (b) wrong
  21. 21.2 + 1 + 7 + 8 =
  22. 22.81 + 14 + 44 + 54 =
  23. 23.499 + 29 =
  24. 24.40 + 42 + 40 + 71 =
  25. 25.14 × 17 =
  26. 26.Best estimate of 39 × 32? (a) 12000 (b) 120 (c) 2400 (d) 1200
  27. 27.₹31.85 − ₹23.35 =
  28. 28.36 + 61 + 69 + 63 =
  29. 29.50% of 670 =
  30. 30.4 + 7 + 9 + 1 + 4 =
  31. 31.715 ÷ 5 =
  32. 32.34 × 8 =
  33. 33.10% of 50 =
  34. 34.20% of 250 =
  35. 35.25% of 60 =
  36. 36.85 + 30 + 51 + 31 =
  37. 37.405 + 19 =
  38. 38.19² =
  39. 39.25% of 260 =
  40. 40.427 + 17 =

Answer key

  1. 215
  2. 584
  3. 184
  4. 248
  5. 414
  6. wrong
  7. 370
  8. 11.25
  9. 112.25
  10. correct
  11. 77.05
  12. 23.25
  13. 170
  14. 234
  15. 39
  16. 27
  17. 525
  18. 8
  19. 36
  20. wrong
  21. 18
  22. 193
  23. 528
  24. 193
  25. 238
  26. 1200
  27. 8.5
  28. 229
  29. 335
  30. 25
  31. 143
  32. 272
  33. 5
  34. 50
  35. 15
  36. 197
  37. 424
  38. 361
  39. 65
  40. 444

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