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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 51 · 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.₹13.80 − ₹6.20 =
  2. 2.45 × 5 =
  3. 3.42 × 15 =
  4. 4.4 + 8 + 4 + 2 + 6 =
  5. 5.45 × 15 =
  6. 6.103 − 77 =
  7. 7.21 × 50 =
  8. 8.46 × 15 =
  9. 9.151 − 56 =
  10. 10.15% of 850 =
  11. 11.₹78.05 + ₹20.80 =
  12. 12.14 × 16 =
  13. 13.900 ÷ 50 =
  14. 14.50% of 890 =
  15. 15.Check with nines: 419 + 549 = 968. Correct or wrong? (a) wrong (b) correct
  16. 16.89² =
  17. 17.435 + 99 =
  18. 18.76 + 34 + 29 + 28 =
  19. 19.249 − 89 =
  20. 20.₹92.45 + ₹45.10 =
  21. 21.9 + 9 + 1 + 1 =
  22. 22.307 + 57 =
  23. 23.24 × 5 =
  24. 24.Check with nines: 13 × 59 = 767. Correct or wrong? (a) correct (b) wrong
  25. 25.124 − 18 =
  26. 26.11 × 14 =
  27. 27.91 × 4 =
  28. 28.71² =
  29. 29.19 × 18 =
  30. 30.850 ÷ 25 =
  31. 31.86 + 26 + 79 + 42 =
  32. 32.Check with nines: 18 × 95 = 1707. Correct or wrong? (a) wrong (b) correct
  33. 33.77 + 67 + 39 + 50 =
  34. 34.51 × 15 =
  35. 35.48 × 15 =
  36. 36.16 × 12 =
  37. 37.35 + 48 =
  38. 38.58 × 5 =
  39. 39.89 × 5 =
  40. 40.4 + 5 + 5 + 6 =

Answer key

  1. 7.6
  2. 225
  3. 630
  4. 24
  5. 675
  6. 26
  7. 1050
  8. 690
  9. 95
  10. 127.5
  11. 98.85
  12. 224
  13. 18
  14. 445
  15. correct
  16. 7921
  17. 534
  18. 167
  19. 160
  20. 137.55
  21. 20
  22. 364
  23. 120
  24. correct
  25. 106
  26. 154
  27. 364
  28. 5041
  29. 342
  30. 34
  31. 233
  32. wrong
  33. 233
  34. 765
  35. 720
  36. 192
  37. 83
  38. 290
  39. 445
  40. 20

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