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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 779 · 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. 2.51² =
  3. 3.43 × 15 =
  4. 4.Best estimate of 49 × 39? (a) 200 (b) 4000 (c) 2000 (d) 20000
  5. 5.13 × 14 =
  6. 6.₹81.05 − ₹27.60 =
  7. 7.₹31.45 − ₹24.30 =
  8. 8.71 × 50 =
  9. 9.20% of 290 =
  10. 10.50% of 140 =
  11. 11.44 × 4 =
  12. 12.Check with nines: 780 + 652 = 1424. Correct or wrong? (a) wrong (b) correct
  13. 13.1% of 430 =
  14. 14.481 + 37 =
  15. 15.Check with nines: 97 × 24 = 2328. Correct or wrong? (a) correct (b) wrong
  16. 16.74 × 50 =
  17. 17.436 − 99 =
  18. 18.17 × 15 =
  19. 19.593 − 97 =
  20. 20.18 × 17 =
  21. 21.40 + 25 + 70 + 85 =
  22. 22.217 − 57 =
  23. 23.44 × 15 =
  24. 24.14 × 17 =
  25. 25.50% of 330 =
  26. 26.5% of 130 =
  27. 27.₹55.45 + ₹17.10 =
  28. 28.1% of 700 =
  29. 29.95 − 26 =
  30. 30.13 × 12 =
  31. 31.291 − 37 =
  32. 32.17 × 11 =
  33. 33.528 − 38 =
  34. 34.428 − 49 =
  35. 35.Best estimate of 203 × 3? (a) 600 (b) 6000 (c) 1200 (d) 60
  36. 36.₹81.20 − ₹12.30 =
  37. 37.544 − 36 =
  38. 38.11 × 15 =
  39. 39.1950 ÷ 50 =
  40. 40.65 × 8 =

Answer key

  1. 266
  2. 2601
  3. 645
  4. 2000
  5. 182
  6. 53.45
  7. 7.15
  8. 3550
  9. 58
  10. 70
  11. 176
  12. wrong
  13. 4.3
  14. 518
  15. correct
  16. 3700
  17. 337
  18. 255
  19. 496
  20. 306
  21. 220
  22. 160
  23. 660
  24. 238
  25. 165
  26. 6.5
  27. 72.55
  28. 7
  29. 69
  30. 156
  31. 254
  32. 187
  33. 490
  34. 379
  35. 600
  36. 68.9
  37. 508
  38. 165
  39. 39
  40. 520

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