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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 184 · 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. 1.76 + 27 =
  2. 2.₹8.15 + ₹8.15 =
  3. 3.145 × 4 =
  4. 4.50 × 15 =
  5. 5.₹27.95 + ₹4.90 =
  6. 6.146 × 4 =
  7. 7.1950 ÷ 50 =
  8. 8.596 − 56 =
  9. 9.85 + 76 + 21 + 62 =
  10. 10.508 − 26 =
  11. 11.15% of 510 =
  12. 12.24 × 5 =
  13. 13.5% of 650 =
  14. 14.263 − 66 =
  15. 15.31 × 8 =
  16. 16.Best estimate of 18 × 91? (a) 3600 (b) 18000 (c) 180 (d) 1800
  17. 17.191 − 66 =
  18. 18.39² =
  19. 19.30 × 15 =
  20. 20.31² =
  21. 21.480 + 78 =
  22. 22.75 ÷ 25 =
  23. 23.Best estimate of 303 × 3? (a) 9000 (b) 900 (c) 1800 (d) 90
  24. 24.₹79.60 − ₹26.05 =
  25. 25.209 − 27 =
  26. 26.1% of 100 =
  27. 27.7 + 1 + 1 + 9 =
  28. 28.31 × 8 =
  29. 29.109 − 59 =
  30. 30.1950 ÷ 50 =
  31. 31.15 + 23 + 72 + 31 =
  32. 32.154 + 29 =
  33. 33.Check with nines: 693 + 139 = 832. Correct or wrong? (a) correct (b) wrong
  34. 34.₹34.30 + ₹15.65 =
  35. 35.120 − 17 =
  36. 36.73 × 8 =
  37. 37.19 × 13 =
  38. 38.6 × 15 =
  39. 39.24 × 4 =
  40. 40.Best estimate of 397 × 8? (a) 32000 (b) 320 (c) 3200 (d) 6400

Answer key

  1. 103
  2. 16.3
  3. 580
  4. 750
  5. 32.85
  6. 584
  7. 39
  8. 540
  9. 244
  10. 482
  11. 76.5
  12. 120
  13. 32.5
  14. 197
  15. 248
  16. 1800
  17. 125
  18. 1521
  19. 450
  20. 961
  21. 558
  22. 3
  23. 900
  24. 53.55
  25. 182
  26. 1
  27. 18
  28. 248
  29. 50
  30. 39
  31. 141
  32. 183
  33. correct
  34. 49.95
  35. 103
  36. 584
  37. 247
  38. 90
  39. 96
  40. 3200

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