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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 943 · 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. 1.56 × 15 =
  2. 2.3 + 5 + 9 + 9 + 5 =
  3. 3.1900 ÷ 50 =
  4. 4.2 + 9 + 8 + 3 =
  5. 5.485 + 47 =
  6. 6.78 × 50 =
  7. 7.35 + 56 + 38 + 63 =
  8. 8.34 + 60 + 83 + 29 =
  9. 9.15% of 510 =
  10. 10.11 + 34 + 14 + 66 =
  11. 11.44 × 15 =
  12. 12.18 × 5 =
  13. 13.59² =
  14. 14.29² =
  15. 15.Best estimate of 402 × 9? (a) 3600 (b) 7200 (c) 360 (d) 36000
  16. 16.50% of 90 =
  17. 17.17 × 17 =
  18. 18.235 + 88 =
  19. 19.291 − 16 =
  20. 20.56 + 59 + 64 + 38 =
  21. 21.₹70.25 + ₹11.05 =
  22. 22.995 ÷ 5 =
  23. 23.47 + 69 =
  24. 24.109 + 17 =
  25. 25.Best estimate of 303 × 4? (a) 12000 (b) 1200 (c) 120 (d) 2400
  26. 26.5% of 730 =
  27. 27.₹73.10 − ₹40.60 =
  28. 28.360 ÷ 5 =
  29. 29.386 + 57 =
  30. 30.Check with nines: 938 + 355 = 1293. Correct or wrong? (a) correct (b) wrong
  31. 31.400 ÷ 5 =
  32. 32.84 × 5 =
  33. 33.42 + 45 + 16 + 39 =
  34. 34.20 × 50 =
  35. 35.145 ÷ 5 =
  36. 36.419 − 96 =
  37. 37.17 + 84 + 26 + 35 =
  38. 38.66 + 19 =
  39. 39.Check with nines: 19 × 98 = 1862. Correct or wrong? (a) correct (b) wrong
  40. 40.3 + 1 + 4 + 6 =

Answer key

  1. 840
  2. 31
  3. 38
  4. 22
  5. 532
  6. 3900
  7. 192
  8. 206
  9. 76.5
  10. 125
  11. 660
  12. 90
  13. 3481
  14. 841
  15. 3600
  16. 45
  17. 289
  18. 323
  19. 275
  20. 217
  21. 81.3
  22. 199
  23. 116
  24. 126
  25. 1200
  26. 36.5
  27. 32.5
  28. 72
  29. 443
  30. correct
  31. 80
  32. 420
  33. 142
  34. 1000
  35. 29
  36. 323
  37. 162
  38. 85
  39. correct
  40. 14

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