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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 199 · 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. 1.110 − 96 =
  2. 2.3 + 7 + 3 + 7 =
  3. 3.310 ÷ 5 =
  4. 4.16 × 5 =
  5. 5.20% of 300 =
  6. 6.61 + 33 + 64 + 43 =
  7. 7.50% of 420 =
  8. 8.13 × 14 =
  9. 9.Check with nines: 30 × 26 = 781. Correct or wrong? (a) correct (b) wrong
  10. 10.₹38.65 − ₹6.60 =
  11. 11.₹41.80 − ₹25.20 =
  12. 12.79² =
  13. 13.39² =
  14. 14.25% of 720 =
  15. 15.980 ÷ 5 =
  16. 16.81² =
  17. 17.₹59.10 + ₹13.85 =
  18. 18.₹71.65 + ₹35.50 =
  19. 19.550 − 89 =
  20. 20.795 ÷ 5 =
  21. 21.Best estimate of 397 × 9? (a) 7200 (b) 3600 (c) 360 (d) 36000
  22. 22.19 × 13 =
  23. 23.181 − 38 =
  24. 24.559 − 76 =
  25. 25.4 + 9 + 5 + 6 =
  26. 26.62 × 50 =
  27. 27.539 − 27 =
  28. 28.140 ÷ 5 =
  29. 29.104 + 39 =
  30. 30.23 + 43 + 86 + 24 =
  31. 31.153 + 77 =
  32. 32.355 + 19 =
  33. 33.650 ÷ 50 =
  34. 34.96 × 4 =
  35. 35.Best estimate of 48 × 88? (a) 9000 (b) 450 (c) 45000 (d) 4500
  36. 36.292 + 89 =
  37. 37.₹96.30 + ₹26.75 =
  38. 38.23 × 15 =
  39. 39.₹47.80 − ₹20.85 =
  40. 40.17 × 14 =

Answer key

  1. 14
  2. 20
  3. 62
  4. 80
  5. 60
  6. 201
  7. 210
  8. 182
  9. wrong
  10. 32.05
  11. 16.6
  12. 6241
  13. 1521
  14. 180
  15. 196
  16. 6561
  17. 72.95
  18. 107.15
  19. 461
  20. 159
  21. 3600
  22. 247
  23. 143
  24. 483
  25. 24
  26. 3100
  27. 512
  28. 28
  29. 143
  30. 176
  31. 230
  32. 374
  33. 13
  34. 384
  35. 4500
  36. 381
  37. 123.05
  38. 345
  39. 26.95
  40. 238

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