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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 974 · 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. 1.1250 ÷ 50 =
  2. 2.237 − 46 =
  3. 3.62 × 15 =
  4. 4.61 × 50 =
  5. 5.395 − 69 =
  6. 6.Check with nines: 22 × 56 = 1227. Correct or wrong? (a) wrong (b) correct
  7. 7.Check with nines: 508 + 367 = 875. Correct or wrong? (a) wrong (b) correct
  8. 8.116 − 98 =
  9. 9.5% of 20 =
  10. 10.₹17.80 + ₹7.30 =
  11. 11.485 − 76 =
  12. 12.71² =
  13. 13.₹77.15 + ₹25.15 =
  14. 14.8 + 9 + 7 + 6 + 3 =
  15. 15.480 + 18 =
  16. 16.68 + 19 + 26 + 27 =
  17. 17.61² =
  18. 18.381 + 87 =
  19. 19.1375 ÷ 25 =
  20. 20.16 + 77 + 21 + 86 =
  21. 21.85 + 89 =
  22. 22.491 − 97 =
  23. 23.16 × 17 =
  24. 24.₹96.60 − ₹17.30 =
  25. 25.21 × 8 =
  26. 26.745 ÷ 5 =
  27. 27.578 − 26 =
  28. 28.201 + 37 =
  29. 29.49² =
  30. 30.1 + 6 + 4 + 5 + 9 =
  31. 31.10% of 240 =
  32. 32.₹48.30 − ₹36.55 =
  33. 33.6 + 5 + 5 + 7 =
  34. 34.Check with nines: 129 + 971 = 1105. Correct or wrong? (a) wrong (b) correct
  35. 35.49² =
  36. 36.5% of 710 =
  37. 37.1150 ÷ 50 =
  38. 38.31 + 47 =
  39. 39.740 ÷ 5 =
  40. 40.361 + 98 =

Answer key

  1. 25
  2. 191
  3. 930
  4. 3050
  5. 326
  6. wrong
  7. correct
  8. 18
  9. 1
  10. 25.1
  11. 409
  12. 5041
  13. 102.3
  14. 33
  15. 498
  16. 140
  17. 3721
  18. 468
  19. 55
  20. 200
  21. 174
  22. 394
  23. 272
  24. 79.3
  25. 168
  26. 149
  27. 552
  28. 238
  29. 2401
  30. 25
  31. 24
  32. 11.75
  33. 23
  34. wrong
  35. 2401
  36. 35.5
  37. 23
  38. 78
  39. 148
  40. 459

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