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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 878 · 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. 1.320 + 47 =
  2. 2.375 − 89 =
  3. 3.Best estimate of 401 × 4? (a) 1600 (b) 16000 (c) 3200 (d) 160
  4. 4.489 + 18 =
  5. 5.39² =
  6. 6.3 + 6 + 8 + 2 + 2 =
  7. 7.78 + 68 + 56 + 25 =
  8. 8.69² =
  9. 9.35 + 21 + 11 + 75 =
  10. 10.154 × 4 =
  11. 11.1% of 60 =
  12. 12.16 × 15 =
  13. 13.6 × 15 =
  14. 14.155 − 98 =
  15. 15.15 × 18 =
  16. 16.58 + 47 =
  17. 17.60 + 26 + 16 + 82 =
  18. 18.11 + 78 + 76 + 53 =
  19. 19.121 × 4 =
  20. 20.335 + 67 =
  21. 21.31 × 15 =
  22. 22.46 + 45 + 80 + 31 =
  23. 23.216 + 37 =
  24. 24.19 × 17 =
  25. 25.25 × 8 =
  26. 26.₹16.25 + ₹38.45 =
  27. 27.320 + 87 =
  28. 28.10% of 310 =
  29. 29.14 × 15 =
  30. 30.1% of 280 =
  31. 31.13 × 12 =
  32. 32.90 × 5 =
  33. 33.23 × 15 =
  34. 34.₹57.15 − ₹13.25 =
  35. 35.₹58.80 + ₹10.75 =
  36. 36.33 × 15 =
  37. 37.15 × 5 =
  38. 38.61² =
  39. 39.517 − 28 =
  40. 40.930 ÷ 5 =

Answer key

  1. 367
  2. 286
  3. 1600
  4. 507
  5. 1521
  6. 21
  7. 227
  8. 4761
  9. 142
  10. 616
  11. 0.6
  12. 240
  13. 90
  14. 57
  15. 270
  16. 105
  17. 184
  18. 218
  19. 484
  20. 402
  21. 465
  22. 202
  23. 253
  24. 323
  25. 200
  26. 54.7
  27. 407
  28. 31
  29. 210
  30. 2.8
  31. 156
  32. 450
  33. 345
  34. 43.9
  35. 69.55
  36. 495
  37. 75
  38. 3721
  39. 489
  40. 186

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