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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 60 · 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. 1.9 + 7 + 2 + 3 =
  2. 2.13 × 12 =
  3. 3.13 + 40 + 55 + 81 =
  4. 4.13 × 11 =
  5. 5.46 × 15 =
  6. 6.503 − 38 =
  7. 7.₹6.75 + ₹21.75 =
  8. 8.79 + 77 =
  9. 9.322 + 39 =
  10. 10.23 × 5 =
  11. 11.₹46.45 + ₹19.45 =
  12. 12.159 − 86 =
  13. 13.161 − 96 =
  14. 14.55 × 8 =
  15. 15.69² =
  16. 16.60 × 5 =
  17. 17.115 + 88 =
  18. 18.Best estimate of 52 × 19? (a) 100 (b) 1000 (c) 2000 (d) 10000
  19. 19.6 + 5 + 3 + 5 =
  20. 20.₹27.15 − ₹25.60 =
  21. 21.7 + 6 + 4 + 6 + 9 =
  22. 22.38 × 4 =
  23. 23.₹48.05 + ₹48.90 =
  24. 24.64 × 4 =
  25. 25.10% of 590 =
  26. 26.14 × 15 =
  27. 27.99 + 37 =
  28. 28.10% of 190 =
  29. 29.20% of 190 =
  30. 30.₹5.60 + ₹37.90 =
  31. 31.31² =
  32. 32.51² =
  33. 33.154 − 57 =
  34. 34.13 + 86 + 13 + 51 =
  35. 35.38 × 15 =
  36. 36.292 − 88 =
  37. 37.Best estimate of 802 × 4? (a) 32000 (b) 320 (c) 6400 (d) 3200
  38. 38.Check with nines: 173 + 431 = 610. Correct or wrong? (a) wrong (b) correct
  39. 39.₹74.75 + ₹23.75 =
  40. 40.292 + 38 =

Answer key

  1. 21
  2. 156
  3. 189
  4. 143
  5. 690
  6. 465
  7. 28.5
  8. 156
  9. 361
  10. 115
  11. 65.9
  12. 73
  13. 65
  14. 440
  15. 4761
  16. 300
  17. 203
  18. 1000
  19. 19
  20. 1.55
  21. 32
  22. 152
  23. 96.95
  24. 256
  25. 59
  26. 210
  27. 136
  28. 19
  29. 38
  30. 43.5
  31. 961
  32. 2601
  33. 97
  34. 163
  35. 570
  36. 204
  37. 3200
  38. wrong
  39. 98.5
  40. 330

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