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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 822 · 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. 1.464 − 78 =
  2. 2.207 − 58 =
  3. 3.14 × 50 =
  4. 4.Check with nines: 67 × 35 = 2344. Correct or wrong? (a) wrong (b) correct
  5. 5.46 + 28 =
  6. 6.Check with nines: 96 × 54 = 5187. Correct or wrong? (a) correct (b) wrong
  7. 7.31² =
  8. 8.19² =
  9. 9.31² =
  10. 10.502 − 96 =
  11. 11.549 − 18 =
  12. 12.300 ÷ 25 =
  13. 13.89² =
  14. 14.41 × 50 =
  15. 15.16 × 13 =
  16. 16.400 + 67 =
  17. 17.6 + 7 + 3 + 9 + 7 =
  18. 18.233 + 68 =
  19. 19.34 × 4 =
  20. 20.468 − 48 =
  21. 21.72 + 65 + 72 + 50 =
  22. 22.Check with nines: 27 × 23 = 621. Correct or wrong? (a) correct (b) wrong
  23. 23.8 + 5 + 6 + 2 =
  24. 24.39² =
  25. 25.13 × 13 =
  26. 26.₹11.40 + ₹6.20 =
  27. 27.39 × 15 =
  28. 28.10% of 120 =
  29. 29.120 + 28 =
  30. 30.700 ÷ 50 =
  31. 31.53 × 8 =
  32. 32.340 + 49 =
  33. 33.875 ÷ 25 =
  34. 34.₹34.65 + ₹43.10 =
  35. 35.Best estimate of 52 × 68? (a) 35000 (b) 7000 (c) 350 (d) 3500
  36. 36.112 × 4 =
  37. 37.378 + 57 =
  38. 38.200 ÷ 50 =
  39. 39.38 + 49 + 81 + 69 =
  40. 40.20% of 130 =

Answer key

  1. 386
  2. 149
  3. 700
  4. wrong
  5. 74
  6. wrong
  7. 961
  8. 361
  9. 961
  10. 406
  11. 531
  12. 12
  13. 7921
  14. 2050
  15. 208
  16. 467
  17. 32
  18. 301
  19. 136
  20. 420
  21. 259
  22. correct
  23. 21
  24. 1521
  25. 169
  26. 17.6
  27. 585
  28. 12
  29. 148
  30. 14
  31. 424
  32. 389
  33. 35
  34. 77.75
  35. 3500
  36. 448
  37. 435
  38. 4
  39. 237
  40. 26

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