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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 576 · 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. 1.15 + 79 + 29 + 38 =
  2. 2.7 + 5 + 1 + 5 + 1 =
  3. 3.19 × 12 =
  4. 4.2 + 6 + 6 + 8 =
  5. 5.4 + 4 + 5 + 5 =
  6. 6.₹46.40 − ₹16.05 =
  7. 7.9 + 4 + 5 + 1 + 5 =
  8. 8.Check with nines: 34 × 40 = 1360. Correct or wrong? (a) wrong (b) correct
  9. 9.16 × 12 =
  10. 10.48 × 5 =
  11. 11.425 ÷ 25 =
  12. 12.69² =
  13. 13.459 + 59 =
  14. 14.Best estimate of 91 × 58? (a) 54000 (b) 540 (c) 10800 (d) 5400
  15. 15.₹49.10 + ₹47.95 =
  16. 16.50% of 720 =
  17. 17.₹27.30 − ₹18.95 =
  18. 18.66 + 61 + 30 + 17 =
  19. 19.990 ÷ 5 =
  20. 20.34 + 58 =
  21. 21.19 × 16 =
  22. 22.18 + 29 + 34 + 15 =
  23. 23.80 + 81 + 14 + 49 =
  24. 24.36 × 15 =
  25. 25.3 + 7 + 1 + 5 =
  26. 26.59 + 57 =
  27. 27.60 + 69 + 65 + 18 =
  28. 28.Best estimate of 899 × 5? (a) 450 (b) 9000 (c) 4500 (d) 45000
  29. 29.1% of 450 =
  30. 30.43 × 15 =
  31. 31.26 × 8 =
  32. 32.₹80.10 − ₹19.20 =
  33. 33.50% of 480 =
  34. 34.60 × 15 =
  35. 35.13 × 50 =
  36. 36.349 − 99 =
  37. 37.55 × 15 =
  38. 38.Best estimate of 402 × 5? (a) 200 (b) 4000 (c) 2000 (d) 20000
  39. 39.₹30.25 + ₹38.15 =
  40. 40.18 × 19 =

Answer key

  1. 161
  2. 19
  3. 228
  4. 22
  5. 18
  6. 30.35
  7. 24
  8. correct
  9. 192
  10. 240
  11. 17
  12. 4761
  13. 518
  14. 5400
  15. 97.05
  16. 360
  17. 8.35
  18. 174
  19. 198
  20. 92
  21. 304
  22. 96
  23. 224
  24. 540
  25. 16
  26. 116
  27. 212
  28. 4500
  29. 4.5
  30. 645
  31. 208
  32. 60.9
  33. 240
  34. 900
  35. 650
  36. 250
  37. 825
  38. 2000
  39. 68.4
  40. 342

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