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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 995 · 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. 1.39 + 64 + 52 + 48 =
  2. 2.18 × 17 =
  3. 3.42 × 15 =
  4. 4.69 + 56 + 51 + 89 =
  5. 5.10% of 890 =
  6. 6.8 + 9 + 1 + 7 =
  7. 7.1300 ÷ 25 =
  8. 8.205 − 96 =
  9. 9.16 × 13 =
  10. 10.75 ÷ 25 =
  11. 11.50% of 100 =
  12. 12.6 + 8 + 7 + 5 + 5 =
  13. 13.19² =
  14. 14.15% of 220 =
  15. 15.42 × 15 =
  16. 16.19 × 19 =
  17. 17.145 ÷ 5 =
  18. 18.350 ÷ 25 =
  19. 19.16 × 14 =
  20. 20.18 × 14 =
  21. 21.62 + 87 + 40 + 71 =
  22. 22.8 + 8 + 4 + 6 + 4 =
  23. 23.69² =
  24. 24.8 + 2 + 2 + 3 =
  25. 25.528 − 66 =
  26. 26.Best estimate of 51 × 69? (a) 3500 (b) 35000 (c) 7000 (d) 350
  27. 27.75 ÷ 25 =
  28. 28.675 ÷ 25 =
  29. 29.Check with nines: 964 + 308 = 1271. Correct or wrong? (a) correct (b) wrong
  30. 30.75 + 35 + 27 + 86 =
  31. 31.30 × 50 =
  32. 32.₹12.05 + ₹23.35 =
  33. 33.26 + 24 + 87 + 14 =
  34. 34.10% of 660 =
  35. 35.19 × 18 =
  36. 36.29 × 50 =
  37. 37.26 × 50 =
  38. 38.175 − 77 =
  39. 39.7 + 1 + 1 + 9 =
  40. 40.89² =

Answer key

  1. 203
  2. 306
  3. 630
  4. 265
  5. 89
  6. 25
  7. 52
  8. 109
  9. 208
  10. 3
  11. 50
  12. 31
  13. 361
  14. 33
  15. 630
  16. 361
  17. 29
  18. 14
  19. 224
  20. 252
  21. 260
  22. 30
  23. 4761
  24. 15
  25. 462
  26. 3500
  27. 3
  28. 27
  29. wrong
  30. 223
  31. 1500
  32. 35.4
  33. 151
  34. 66
  35. 342
  36. 1450
  37. 1300
  38. 98
  39. 18
  40. 7921

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