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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 262 · 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. 1.55 + 89 + 41 + 34 =
  2. 2.479 + 87 =
  3. 3.₹30.65 + ₹33.50 =
  4. 4.15 + 23 + 41 + 23 =
  5. 5.50% of 290 =
  6. 6.21² =
  7. 7.23 × 8 =
  8. 8.21 × 4 =
  9. 9.18 × 13 =
  10. 10.152 + 97 =
  11. 11.Check with nines: 28 × 74 = 2080. Correct or wrong? (a) wrong (b) correct
  12. 12.Check with nines: 292 + 629 = 921. Correct or wrong? (a) correct (b) wrong
  13. 13.346 − 69 =
  14. 14.1% of 840 =
  15. 15.393 − 77 =
  16. 16.₹41.50 + ₹12.95 =
  17. 17.15 × 19 =
  18. 18.15 × 14 =
  19. 19.5% of 790 =
  20. 20.62 × 4 =
  21. 21.76 + 35 + 15 + 50 =
  22. 22.63 × 5 =
  23. 23.Check with nines: 86 × 27 = 2322. Correct or wrong? (a) correct (b) wrong
  24. 24.20% of 80 =
  25. 25.25% of 30 =
  26. 26.29² =
  27. 27.25% of 790 =
  28. 28.64 + 37 + 27 + 33 =
  29. 29.148 × 4 =
  30. 30.18 × 16 =
  31. 31.2 + 3 + 1 + 8 =
  32. 32.58 + 87 =
  33. 33.242 + 27 =
  34. 34.Check with nines: 957 + 928 = 1885. Correct or wrong? (a) wrong (b) correct
  35. 35.367 − 28 =
  36. 36.85 + 37 =
  37. 37.₹21.35 + ₹39.85 =
  38. 38.5% of 580 =
  39. 39.₹81.70 − ₹33.10 =
  40. 40.15 × 12 =

Answer key

  1. 219
  2. 566
  3. 64.15
  4. 102
  5. 145
  6. 441
  7. 184
  8. 84
  9. 234
  10. 249
  11. wrong
  12. correct
  13. 277
  14. 8.4
  15. 316
  16. 54.45
  17. 285
  18. 210
  19. 39.5
  20. 248
  21. 176
  22. 315
  23. correct
  24. 16
  25. 7.5
  26. 841
  27. 197.5
  28. 161
  29. 592
  30. 288
  31. 14
  32. 145
  33. 269
  34. correct
  35. 339
  36. 122
  37. 61.2
  38. 29
  39. 48.6
  40. 180

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