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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 869 · 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. 1.45 × 8 =
  2. 2.650 ÷ 25 =
  3. 3.11 × 13 =
  4. 4.90 × 5 =
  5. 5.19 × 5 =
  6. 6.11 × 13 =
  7. 7.63 × 4 =
  8. 8.₹67.10 − ₹29.35 =
  9. 9.19 × 18 =
  10. 10.49 + 29 + 17 + 71 =
  11. 11.11 + 65 + 77 + 38 =
  12. 12.20 × 8 =
  13. 13.197 − 98 =
  14. 14.1125 ÷ 25 =
  15. 15.177 + 27 =
  16. 16.1% of 70 =
  17. 17.6 + 4 + 9 + 4 + 7 =
  18. 18.551 − 67 =
  19. 19.354 + 67 =
  20. 20.15 × 15 =
  21. 21.66 × 5 =
  22. 22.29 + 25 + 29 + 72 =
  23. 23.18 + 77 + 53 + 62 =
  24. 24.19 × 11 =
  25. 25.82 + 15 + 47 + 37 =
  26. 26.200 − 97 =
  27. 27.31² =
  28. 28.12 × 17 =
  29. 29.Check with nines: 14 × 13 = 182. Correct or wrong? (a) correct (b) wrong
  30. 30.Best estimate of 79 × 38? (a) 3200 (b) 320 (c) 6400 (d) 32000
  31. 31.5 + 5 + 9 + 5 + 9 =
  32. 32.75 + 39 =
  33. 33.46 × 50 =
  34. 34.31 × 15 =
  35. 35.Check with nines: 96 × 54 = 5184. Correct or wrong? (a) correct (b) wrong
  36. 36.28 + 11 + 12 + 56 =
  37. 37.Best estimate of 703 × 6? (a) 4200 (b) 420 (c) 42000 (d) 8400
  38. 38.Best estimate of 301 × 6? (a) 1800 (b) 3600 (c) 180 (d) 18000
  39. 39.235 + 38 =
  40. 40.9 + 2 + 8 + 9 =

Answer key

  1. 360
  2. 26
  3. 143
  4. 450
  5. 95
  6. 143
  7. 252
  8. 37.75
  9. 342
  10. 166
  11. 191
  12. 160
  13. 99
  14. 45
  15. 204
  16. 0.7
  17. 30
  18. 484
  19. 421
  20. 225
  21. 330
  22. 155
  23. 210
  24. 209
  25. 181
  26. 103
  27. 961
  28. 204
  29. correct
  30. 3200
  31. 33
  32. 114
  33. 2300
  34. 465
  35. correct
  36. 107
  37. 4200
  38. 1800
  39. 273
  40. 28

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