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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 859 · 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.₹12.50 + ₹29.10 =
  2. 2.114 − 87 =
  3. 3.36 × 15 =
  4. 4.231 − 18 =
  5. 5.18 × 18 =
  6. 6.Check with nines: 893 + 644 = 1543. Correct or wrong? (a) correct (b) wrong
  7. 7.₹23.35 − ₹7.40 =
  8. 8.557 − 59 =
  9. 9.Best estimate of 299 × 3? (a) 900 (b) 9000 (c) 90 (d) 1800
  10. 10.Best estimate of 297 × 7? (a) 21000 (b) 2100 (c) 210 (d) 4200
  11. 11.20% of 80 =
  12. 12.153 × 4 =
  13. 13.₹57.80 − ₹45.35 =
  14. 14.625 ÷ 25 =
  15. 15.385 − 76 =
  16. 16.35 × 15 =
  17. 17.61² =
  18. 18.28 × 5 =
  19. 19.267 − 19 =
  20. 20.9 + 9 + 9 + 4 + 1 =
  21. 21.280 + 39 =
  22. 22.9 + 9 + 6 + 3 + 4 =
  23. 23.₹50.25 + ₹17.90 =
  24. 24.145 − 96 =
  25. 25.164 − 57 =
  26. 26.Best estimate of 22 × 28? (a) 600 (b) 1200 (c) 6000 (d) 60
  27. 27.19² =
  28. 28.5 × 15 =
  29. 29.1900 ÷ 50 =
  30. 30.41 × 5 =
  31. 31.12 + 32 + 68 + 52 =
  32. 32.140 ÷ 5 =
  33. 33.19 × 18 =
  34. 34.₹38.55 − ₹31.35 =
  35. 35.79 × 50 =
  36. 36.47 + 65 + 72 + 54 =
  37. 37.Best estimate of 98 × 9? (a) 900 (b) 90 (c) 1800 (d) 9000
  38. 38.480 − 16 =
  39. 39.42 × 15 =
  40. 40.₹33.15 − ₹27.75 =

Answer key

  1. 41.6
  2. 27
  3. 540
  4. 213
  5. 324
  6. wrong
  7. 15.95
  8. 498
  9. 900
  10. 2100
  11. 16
  12. 612
  13. 12.45
  14. 25
  15. 309
  16. 525
  17. 3721
  18. 140
  19. 248
  20. 32
  21. 319
  22. 31
  23. 68.15
  24. 49
  25. 107
  26. 600
  27. 361
  28. 75
  29. 38
  30. 205
  31. 164
  32. 28
  33. 342
  34. 7.2
  35. 3950
  36. 238
  37. 900
  38. 464
  39. 630
  40. 5.4

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