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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 868 · 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. 1.8 + 2 + 3 + 1 + 9 =
  2. 2.49 + 13 + 58 + 19 =
  3. 3.10% of 340 =
  4. 4.₹53.35 + ₹7.75 =
  5. 5.15% of 210 =
  6. 6.Check with nines: 81 × 67 = 5427. Correct or wrong? (a) wrong (b) correct
  7. 7.85 + 30 + 11 + 15 =
  8. 8.17 × 11 =
  9. 9.217 + 29 =
  10. 10.11 × 13 =
  11. 11.19 × 15 =
  12. 12.377 + 39 =
  13. 13.34 × 8 =
  14. 14.61² =
  15. 15.6 + 6 + 4 + 2 =
  16. 16.69 + 13 + 86 + 74 =
  17. 17.493 + 58 =
  18. 18.69 × 50 =
  19. 19.Check with nines: 31 × 17 = 527. Correct or wrong? (a) correct (b) wrong
  20. 20.5 + 9 + 1 + 8 + 1 =
  21. 21.Check with nines: 172 + 218 = 394. Correct or wrong? (a) correct (b) wrong
  22. 22.Best estimate of 68 × 59? (a) 4200 (b) 42000 (c) 420 (d) 8400
  23. 23.₹70.25 + ₹18.85 =
  24. 24.39² =
  25. 25.75 + 88 =
  26. 26.71² =
  27. 27.81 + 43 + 70 + 53 =
  28. 28.5% of 800 =
  29. 29.29² =
  30. 30.3 + 7 + 1 + 5 =
  31. 31.61 + 89 + 40 + 64 =
  32. 32.₹43.95 − ₹21.60 =
  33. 33.₹11.90 + ₹7.60 =
  34. 34.316 + 17 =
  35. 35.370 − 27 =
  36. 36.13 × 17 =
  37. 37.14 × 18 =
  38. 38.147 × 4 =
  39. 39.5 + 5 + 5 + 2 + 5 =
  40. 40.₹94.15 + ₹20.65 =

Answer key

  1. 23
  2. 139
  3. 34
  4. 61.1
  5. 31.5
  6. correct
  7. 141
  8. 187
  9. 246
  10. 143
  11. 285
  12. 416
  13. 272
  14. 3721
  15. 18
  16. 242
  17. 551
  18. 3450
  19. correct
  20. 24
  21. wrong
  22. 4200
  23. 89.1
  24. 1521
  25. 163
  26. 5041
  27. 247
  28. 40
  29. 841
  30. 16
  31. 254
  32. 22.35
  33. 19.5
  34. 333
  35. 343
  36. 221
  37. 252
  38. 588
  39. 22
  40. 114.8

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