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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 252 · 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. 1.1% of 500 =
  2. 2.100 ÷ 25 =
  3. 3.40 × 15 =
  4. 4.4 + 5 + 6 + 5 + 1 =
  5. 5.Check with nines: 167 + 356 = 523. Correct or wrong? (a) correct (b) wrong
  6. 6.61 × 4 =
  7. 7.50 × 15 =
  8. 8.41² =
  9. 9.5% of 140 =
  10. 10.66 × 5 =
  11. 11.14 × 11 =
  12. 12.18 × 8 =
  13. 13.29 × 15 =
  14. 14.6 × 15 =
  15. 15.7 + 9 + 8 + 1 =
  16. 16.Check with nines: 68 × 65 = 4422. Correct or wrong? (a) correct (b) wrong
  17. 17.330 + 97 =
  18. 18.21² =
  19. 19.3 + 5 + 7 + 4 =
  20. 20.Check with nines: 566 + 819 = 1389. Correct or wrong? (a) wrong (b) correct
  21. 21.Check with nines: 815 + 169 = 984. Correct or wrong? (a) correct (b) wrong
  22. 22.17 × 17 =
  23. 23.416 − 98 =
  24. 24.₹44.05 + ₹29.05 =
  25. 25.6 + 9 + 1 + 4 =
  26. 26.27 × 15 =
  27. 27.191 + 49 =
  28. 28.59² =
  29. 29.2 + 9 + 3 + 8 =
  30. 30.352 + 29 =
  31. 31.134 − 98 =
  32. 32.172 + 18 =
  33. 33.₹39.80 − ₹39.35 =
  34. 34.45 × 8 =
  35. 35.1650 ÷ 50 =
  36. 36.422 + 68 =
  37. 37.Best estimate of 72 × 51? (a) 7000 (b) 3500 (c) 35000 (d) 350
  38. 38.14 + 13 + 38 + 26 =
  39. 39.1% of 250 =
  40. 40.29² =

Answer key

  1. 5
  2. 4
  3. 600
  4. 21
  5. correct
  6. 244
  7. 750
  8. 1681
  9. 7
  10. 330
  11. 154
  12. 144
  13. 435
  14. 90
  15. 25
  16. wrong
  17. 427
  18. 441
  19. 19
  20. wrong
  21. correct
  22. 289
  23. 318
  24. 73.1
  25. 20
  26. 405
  27. 240
  28. 3481
  29. 22
  30. 381
  31. 36
  32. 190
  33. 0.45
  34. 360
  35. 33
  36. 490
  37. 3500
  38. 91
  39. 2.5
  40. 841

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