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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 731 · 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. 1.81² =
  2. 2.16 × 16 =
  3. 3.356 + 17 =
  4. 4.199 − 17 =
  5. 5.5% of 640 =
  6. 6.10% of 430 =
  7. 7.Check with nines: 17 × 40 = 672. Correct or wrong? (a) correct (b) wrong
  8. 8.82 + 22 + 57 + 41 =
  9. 9.69² =
  10. 10.20% of 280 =
  11. 11.19 × 19 =
  12. 12.31² =
  13. 13.13 × 11 =
  14. 14.Check with nines: 32 × 47 = 1504. Correct or wrong? (a) correct (b) wrong
  15. 15.118 − 37 =
  16. 16.75 × 4 =
  17. 17.65 × 50 =
  18. 18.20% of 260 =
  19. 19.Check with nines: 56 × 98 = 5488. Correct or wrong? (a) correct (b) wrong
  20. 20.27 × 50 =
  21. 21.43 × 15 =
  22. 22.60 × 15 =
  23. 23.6 + 5 + 4 + 9 + 5 =
  24. 24.210 ÷ 5 =
  25. 25.6 + 6 + 1 + 3 + 4 =
  26. 26.155 − 88 =
  27. 27.495 + 79 =
  28. 28.65 × 4 =
  29. 29.85 + 76 + 24 + 28 =
  30. 30.Check with nines: 27 × 37 = 999. Correct or wrong? (a) wrong (b) correct
  31. 31.₹63.20 − ₹32.65 =
  32. 32.310 ÷ 5 =
  33. 33.2 + 6 + 7 + 8 =
  34. 34.89² =
  35. 35.33 × 4 =
  36. 36.76 × 5 =
  37. 37.Best estimate of 702 × 4? (a) 5600 (b) 2800 (c) 28000 (d) 280
  38. 38.₹72.50 − ₹4.05 =
  39. 39.7 + 8 + 2 + 7 =
  40. 40.320 ÷ 5 =

Answer key

  1. 6561
  2. 256
  3. 373
  4. 182
  5. 32
  6. 43
  7. wrong
  8. 202
  9. 4761
  10. 56
  11. 361
  12. 961
  13. 143
  14. correct
  15. 81
  16. 300
  17. 3250
  18. 52
  19. correct
  20. 1350
  21. 645
  22. 900
  23. 29
  24. 42
  25. 20
  26. 67
  27. 574
  28. 260
  29. 213
  30. correct
  31. 30.55
  32. 62
  33. 23
  34. 7921
  35. 132
  36. 380
  37. 2800
  38. 68.45
  39. 24
  40. 64

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