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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 523 · 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. 1.53 + 17 + 20 + 88 =
  2. 2.15 × 13 =
  3. 3.Check with nines: 89 × 79 = 7031. Correct or wrong? (a) correct (b) wrong
  4. 4.82 × 50 =
  5. 5.50% of 410 =
  6. 6.110 ÷ 5 =
  7. 7.21² =
  8. 8.82 + 67 + 14 + 53 =
  9. 9.1 + 5 + 9 + 8 =
  10. 10.10% of 870 =
  11. 11.297 − 88 =
  12. 12.4 + 8 + 5 + 5 =
  13. 13.₹58.90 − ₹37.65 =
  14. 14.190 + 17 =
  15. 15.25% of 330 =
  16. 16.320 + 28 =
  17. 17.29² =
  18. 18.19 × 8 =
  19. 19.Check with nines: 48 × 49 = 2354. Correct or wrong? (a) correct (b) wrong
  20. 20.121 − 37 =
  21. 21.205 − 37 =
  22. 22.3 + 7 + 3 + 9 + 8 =
  23. 23.33 × 5 =
  24. 24.354 + 39 =
  25. 25.59 + 51 + 79 + 69 =
  26. 26.Check with nines: 155 + 324 = 482. Correct or wrong? (a) wrong (b) correct
  27. 27.10% of 860 =
  28. 28.1300 ÷ 50 =
  29. 29.41 × 8 =
  30. 30.Check with nines: 50 × 18 = 900. Correct or wrong? (a) wrong (b) correct
  31. 31.19 × 15 =
  32. 32.550 ÷ 25 =
  33. 33.37 + 55 + 49 + 46 =
  34. 34.62 × 5 =
  35. 35.110 × 4 =
  36. 36.91² =
  37. 37.15 × 50 =
  38. 38.19 × 18 =
  39. 39.85 + 78 + 27 + 59 =
  40. 40.17 × 12 =

Answer key

  1. 178
  2. 195
  3. correct
  4. 4100
  5. 205
  6. 22
  7. 441
  8. 216
  9. 23
  10. 87
  11. 209
  12. 22
  13. 21.25
  14. 207
  15. 82.5
  16. 348
  17. 841
  18. 152
  19. wrong
  20. 84
  21. 168
  22. 30
  23. 165
  24. 393
  25. 258
  26. wrong
  27. 86
  28. 26
  29. 328
  30. correct
  31. 285
  32. 22
  33. 187
  34. 310
  35. 440
  36. 8281
  37. 750
  38. 342
  39. 249
  40. 204

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