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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 127 · 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. 1.25 + 69 + 39 + 16 =
  2. 2.109 × 4 =
  3. 3.64 × 15 =
  4. 4.63 × 8 =
  5. 5.50% of 180 =
  6. 6.61² =
  7. 7.16 × 15 =
  8. 8.61 + 30 + 42 + 38 =
  9. 9.1250 ÷ 50 =
  10. 10.120 ÷ 5 =
  11. 11.21² =
  12. 12.205 ÷ 5 =
  13. 13.2 + 7 + 2 + 4 + 6 =
  14. 14.16 × 14 =
  15. 15.139 × 4 =
  16. 16.14 × 12 =
  17. 17.9 + 3 + 8 + 2 =
  18. 18.Best estimate of 497 × 7? (a) 7000 (b) 3500 (c) 350 (d) 35000
  19. 19.Check with nines: 49 × 96 = 4704. Correct or wrong? (a) correct (b) wrong
  20. 20.835 ÷ 5 =
  21. 21.66 × 50 =
  22. 22.Best estimate of 69 × 91? (a) 6300 (b) 630 (c) 12600 (d) 63000
  23. 23.19 × 15 =
  24. 24.339 + 58 =
  25. 25.₹10.55 − ₹7.70 =
  26. 26.1 + 8 + 4 + 2 + 8 =
  27. 27.14 × 15 =
  28. 28.87 × 50 =
  29. 29.23 × 50 =
  30. 30.134 × 4 =
  31. 31.840 ÷ 5 =
  32. 32.Best estimate of 61 × 18? (a) 120 (b) 1200 (c) 12000 (d) 2400
  33. 33.550 − 77 =
  34. 34.422 + 57 =
  35. 35.3 + 1 + 5 + 7 =
  36. 36.20% of 180 =
  37. 37.6 + 7 + 3 + 8 =
  38. 38.533 − 19 =
  39. 39.9 + 2 + 8 + 2 =
  40. 40.20% of 170 =

Answer key

  1. 149
  2. 436
  3. 960
  4. 504
  5. 90
  6. 3721
  7. 240
  8. 171
  9. 25
  10. 24
  11. 441
  12. 41
  13. 21
  14. 224
  15. 556
  16. 168
  17. 22
  18. 3500
  19. correct
  20. 167
  21. 3300
  22. 6300
  23. 285
  24. 397
  25. 2.85
  26. 23
  27. 210
  28. 4350
  29. 1150
  30. 536
  31. 168
  32. 1200
  33. 473
  34. 479
  35. 16
  36. 36
  37. 24
  38. 514
  39. 21
  40. 34

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