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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 768 · 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. 1.37 × 5 =
  2. 2.30 + 77 + 38 + 31 =
  3. 3.41² =
  4. 4.19 + 34 + 15 + 26 =
  5. 5.8 + 6 + 5 + 5 =
  6. 6.2 + 8 + 6 + 1 =
  7. 7.Check with nines: 42 × 18 = 756. Correct or wrong? (a) correct (b) wrong
  8. 8.14 × 12 =
  9. 9.61 × 15 =
  10. 10.11 × 15 =
  11. 11.58 × 5 =
  12. 12.25% of 410 =
  13. 13.19² =
  14. 14.25 × 8 =
  15. 15.15% of 520 =
  16. 16.68 × 5 =
  17. 17.141 + 99 =
  18. 18.97 × 5 =
  19. 19.Check with nines: 22 × 73 = 1606. Correct or wrong? (a) wrong (b) correct
  20. 20.294 − 26 =
  21. 21.50% of 730 =
  22. 22.17 × 15 =
  23. 23.68 × 5 =
  24. 24.118 × 4 =
  25. 25.Best estimate of 202 × 6? (a) 2400 (b) 12000 (c) 1200 (d) 120
  26. 26.530 − 88 =
  27. 27.15% of 880 =
  28. 28.13 × 17 =
  29. 29.65 + 87 + 49 + 52 =
  30. 30.685 ÷ 5 =
  31. 31.64 + 40 + 18 + 70 =
  32. 32.8 + 9 + 2 + 4 =
  33. 33.17 × 50 =
  34. 34.700 ÷ 50 =
  35. 35.10% of 120 =
  36. 36.181 + 27 =
  37. 37.₹82.15 + ₹8.60 =
  38. 38.579 − 69 =
  39. 39.12 × 5 =
  40. 40.536 − 46 =

Answer key

  1. 185
  2. 176
  3. 1681
  4. 94
  5. 24
  6. 17
  7. correct
  8. 168
  9. 915
  10. 165
  11. 290
  12. 102.5
  13. 361
  14. 200
  15. 78
  16. 340
  17. 240
  18. 485
  19. correct
  20. 268
  21. 365
  22. 255
  23. 340
  24. 472
  25. 1200
  26. 442
  27. 132
  28. 221
  29. 253
  30. 137
  31. 192
  32. 23
  33. 850
  34. 14
  35. 12
  36. 208
  37. 90.75
  38. 510
  39. 60
  40. 490

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