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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 328 · 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. 1.29 × 50 =
  2. 2.252 + 87 =
  3. 3.1% of 270 =
  4. 4.Check with nines: 211 + 371 = 574. Correct or wrong? (a) wrong (b) correct
  5. 5.9 + 6 + 4 + 2 =
  6. 6.28 × 50 =
  7. 7.59² =
  8. 8.47 + 28 =
  9. 9.25% of 220 =
  10. 10.19 × 8 =
  11. 11.395 ÷ 5 =
  12. 12.39 + 27 + 48 + 41 =
  13. 13.61 + 29 =
  14. 14.Check with nines: 28 × 61 = 1708. Correct or wrong? (a) wrong (b) correct
  15. 15.₹91.75 + ₹10.05 =
  16. 16.₹76.20 + ₹32.70 =
  17. 17.Check with nines: 315 + 941 = 1256. Correct or wrong? (a) wrong (b) correct
  18. 18.337 − 37 =
  19. 19.15 × 8 =
  20. 20.₹67.40 − ₹3.15 =
  21. 21.880 ÷ 5 =
  22. 22.14 × 12 =
  23. 23.1% of 30 =
  24. 24.32 × 5 =
  25. 25.9 + 2 + 7 + 8 =
  26. 26.17 × 18 =
  27. 27.18 × 11 =
  28. 28.46 × 15 =
  29. 29.₹7.20 + ₹22.20 =
  30. 30.117 + 48 =
  31. 31.212 + 17 =
  32. 32.41² =
  33. 33.15% of 200 =
  34. 34.47 × 4 =
  35. 35.278 − 69 =
  36. 36.198 − 17 =
  37. 37.92 + 58 =
  38. 38.5% of 690 =
  39. 39.Check with nines: 353 + 947 = 1300. Correct or wrong? (a) wrong (b) correct
  40. 40.42 × 15 =

Answer key

  1. 1450
  2. 339
  3. 2.7
  4. wrong
  5. 21
  6. 1400
  7. 3481
  8. 75
  9. 55
  10. 152
  11. 79
  12. 155
  13. 90
  14. correct
  15. 101.8
  16. 108.9
  17. correct
  18. 300
  19. 120
  20. 64.25
  21. 176
  22. 168
  23. 0.3
  24. 160
  25. 26
  26. 306
  27. 198
  28. 690
  29. 29.4
  30. 165
  31. 229
  32. 1681
  33. 30
  34. 188
  35. 209
  36. 181
  37. 150
  38. 34.5
  39. correct
  40. 630

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