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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 187 · 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.Best estimate of 698 × 8? (a) 56000 (b) 560 (c) 11200 (d) 5600
  2. 2.61² =
  3. 3.₹32.25 + ₹18.15 =
  4. 4.700 ÷ 50 =
  5. 5.14 × 16 =
  6. 6.Check with nines: 464 + 597 = 1057. Correct or wrong? (a) correct (b) wrong
  7. 7.12 × 11 =
  8. 8.500 ÷ 50 =
  9. 9.10% of 400 =
  10. 10.580 − 58 =
  11. 11.68 + 38 =
  12. 12.35 × 15 =
  13. 13.317 − 49 =
  14. 14.Check with nines: 45 × 58 = 2610. Correct or wrong? (a) correct (b) wrong
  15. 15.₹6.05 + ₹10.10 =
  16. 16.11 × 14 =
  17. 17.61 × 8 =
  18. 18.4 + 7 + 1 + 9 =
  19. 19.1000 ÷ 50 =
  20. 20.850 ÷ 50 =
  21. 21.₹44.10 − ₹17.05 =
  22. 22.362 − 28 =
  23. 23.12 × 8 =
  24. 24.22 × 4 =
  25. 25.₹78.65 + ₹33.45 =
  26. 26.120 − 77 =
  27. 27.82 × 5 =
  28. 28.315 ÷ 5 =
  29. 29.57 + 89 + 72 + 37 =
  30. 30.492 + 67 =
  31. 31.98 + 37 =
  32. 32.21² =
  33. 33.85 × 4 =
  34. 34.3 + 5 + 2 + 5 + 7 =
  35. 35.110 − 48 =
  36. 36.Check with nines: 187 + 677 = 864. Correct or wrong? (a) wrong (b) correct
  37. 37.39² =
  38. 38.3 + 9 + 5 + 5 =
  39. 39.53 + 16 + 14 + 19 =
  40. 40.39 + 45 + 18 + 52 =

Answer key

  1. 5600
  2. 3721
  3. 50.4
  4. 14
  5. 224
  6. wrong
  7. 132
  8. 10
  9. 40
  10. 522
  11. 106
  12. 525
  13. 268
  14. correct
  15. 16.15
  16. 154
  17. 488
  18. 21
  19. 20
  20. 17
  21. 27.05
  22. 334
  23. 96
  24. 88
  25. 112.1
  26. 43
  27. 410
  28. 63
  29. 255
  30. 559
  31. 135
  32. 441
  33. 340
  34. 22
  35. 62
  36. correct
  37. 1521
  38. 22
  39. 102
  40. 154

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