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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 700 · 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. 1.245 + 57 =
  2. 2.16 × 16 =
  3. 3.9 + 6 + 2 + 2 + 8 =
  4. 4.408 + 97 =
  5. 5.₹32.25 + ₹37.25 =
  6. 6.67 × 50 =
  7. 7.15% of 140 =
  8. 8.19 × 15 =
  9. 9.7 + 2 + 5 + 5 =
  10. 10.107 × 4 =
  11. 11.5 + 3 + 7 + 7 + 3 =
  12. 12.18 × 12 =
  13. 13.Best estimate of 78 × 71? (a) 11200 (b) 560 (c) 5600 (d) 56000
  14. 14.139 × 4 =
  15. 15.₹30.30 + ₹33.30 =
  16. 16.5 + 2 + 8 + 2 + 1 =
  17. 17.519 − 46 =
  18. 18.1% of 600 =
  19. 19.94 × 50 =
  20. 20.4 + 9 + 1 + 5 =
  21. 21.281 − 36 =
  22. 22.135 + 28 =
  23. 23.396 + 88 =
  24. 24.69 × 5 =
  25. 25.443 + 39 =
  26. 26.27 × 15 =
  27. 27.418 + 28 =
  28. 28.Best estimate of 62 × 48? (a) 6000 (b) 300 (c) 30000 (d) 3000
  29. 29.5 × 15 =
  30. 30.Check with nines: 615 + 397 = 1012. Correct or wrong? (a) wrong (b) correct
  31. 31.53 × 50 =
  32. 32.1 + 9 + 9 + 9 + 9 =
  33. 33.15 × 4 =
  34. 34.1200 ÷ 50 =
  35. 35.69² =
  36. 36.567 − 68 =
  37. 37.19 × 16 =
  38. 38.73 × 50 =
  39. 39.23 + 56 + 77 + 83 =
  40. 40.41² =

Answer key

  1. 302
  2. 256
  3. 27
  4. 505
  5. 69.5
  6. 3350
  7. 21
  8. 285
  9. 19
  10. 428
  11. 25
  12. 216
  13. 5600
  14. 556
  15. 63.6
  16. 18
  17. 473
  18. 6
  19. 4700
  20. 19
  21. 245
  22. 163
  23. 484
  24. 345
  25. 482
  26. 405
  27. 446
  28. 3000
  29. 75
  30. correct
  31. 2650
  32. 37
  33. 60
  34. 24
  35. 4761
  36. 499
  37. 304
  38. 3650
  39. 239
  40. 1681

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