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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 896 · 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. 1.31² =
  2. 2.160 + 58 =
  3. 3.25% of 340 =
  4. 4.17 × 19 =
  5. 5.10% of 70 =
  6. 6.460 ÷ 5 =
  7. 7.705 ÷ 5 =
  8. 8.61² =
  9. 9.89² =
  10. 10.134 × 4 =
  11. 11.2 + 8 + 8 + 2 + 4 =
  12. 12.83 + 44 + 69 + 31 =
  13. 13.₹6.10 + ₹3.25 =
  14. 14.19 × 12 =
  15. 15.Check with nines: 28 × 78 = 2182. Correct or wrong? (a) correct (b) wrong
  16. 16.164 + 67 =
  17. 17.83 + 63 + 56 + 64 =
  18. 18.Check with nines: 68 × 64 = 4352. Correct or wrong? (a) wrong (b) correct
  19. 19.20% of 30 =
  20. 20.Best estimate of 799 × 5? (a) 400 (b) 8000 (c) 4000 (d) 40000
  21. 21.25% of 810 =
  22. 22.18 × 19 =
  23. 23.5% of 70 =
  24. 24.56 + 49 + 29 + 35 =
  25. 25.Best estimate of 499 × 5? (a) 2500 (b) 5000 (c) 250 (d) 25000
  26. 26.21 × 50 =
  27. 27.755 ÷ 5 =
  28. 28.62 × 15 =
  29. 29.1% of 460 =
  30. 30.2 + 8 + 2 + 7 =
  31. 31.Check with nines: 67 × 98 = 6573. Correct or wrong? (a) wrong (b) correct
  32. 32.389 + 39 =
  33. 33.51² =
  34. 34.120 − 47 =
  35. 35.32 × 50 =
  36. 36.236 − 98 =
  37. 37.28 × 4 =
  38. 38.43 × 15 =
  39. 39.17 × 18 =
  40. 40.12 × 19 =

Answer key

  1. 961
  2. 218
  3. 85
  4. 323
  5. 7
  6. 92
  7. 141
  8. 3721
  9. 7921
  10. 536
  11. 24
  12. 227
  13. 9.35
  14. 228
  15. wrong
  16. 231
  17. 266
  18. correct
  19. 6
  20. 4000
  21. 202.5
  22. 342
  23. 3.5
  24. 169
  25. 2500
  26. 1050
  27. 151
  28. 930
  29. 4.6
  30. 19
  31. wrong
  32. 428
  33. 2601
  34. 73
  35. 1600
  36. 138
  37. 112
  38. 645
  39. 306
  40. 228

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