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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 778 · 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. 1.82 + 63 + 20 + 14 =
  2. 2.620 ÷ 5 =
  3. 3.50% of 550 =
  4. 4.1 + 2 + 4 + 7 + 9 =
  5. 5.326 − 17 =
  6. 6.16 × 14 =
  7. 7.54 × 15 =
  8. 8.13 × 15 =
  9. 9.18 × 12 =
  10. 10.Check with nines: 421 + 562 = 983. Correct or wrong? (a) correct (b) wrong
  11. 11.5% of 520 =
  12. 12.6 + 5 + 6 + 4 + 5 =
  13. 13.13 × 17 =
  14. 14.225 ÷ 25 =
  15. 15.19² =
  16. 16.82 + 12 + 33 + 66 =
  17. 17.50% of 30 =
  18. 18.45 × 4 =
  19. 19.₹61.70 + ₹19.55 =
  20. 20.11 × 12 =
  21. 21.19² =
  22. 22.14 × 16 =
  23. 23.96 × 5 =
  24. 24.74 + 27 + 23 + 37 =
  25. 25.5% of 600 =
  26. 26.66 + 76 + 62 + 24 =
  27. 27.74 × 8 =
  28. 28.417 − 67 =
  29. 29.₹74.20 + ₹49.85 =
  30. 30.₹86.30 + ₹39.35 =
  31. 31.1% of 510 =
  32. 32.3 + 8 + 6 + 3 + 4 =
  33. 33.451 + 37 =
  34. 34.Best estimate of 498 × 9? (a) 450 (b) 45000 (c) 9000 (d) 4500
  35. 35.33 + 43 + 59 + 28 =
  36. 36.50% of 60 =
  37. 37.103 − 36 =
  38. 38.278 + 59 =
  39. 39.71² =
  40. 40.16 × 16 =

Answer key

  1. 179
  2. 124
  3. 275
  4. 23
  5. 309
  6. 224
  7. 810
  8. 195
  9. 216
  10. correct
  11. 26
  12. 26
  13. 221
  14. 9
  15. 361
  16. 193
  17. 15
  18. 180
  19. 81.25
  20. 132
  21. 361
  22. 224
  23. 480
  24. 161
  25. 30
  26. 228
  27. 592
  28. 350
  29. 124.05
  30. 125.65
  31. 5.1
  32. 24
  33. 488
  34. 4500
  35. 163
  36. 30
  37. 67
  38. 337
  39. 5041
  40. 256

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