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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 278 · 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. 1.238 + 68 =
  2. 2.25% of 80 =
  3. 3.68 × 5 =
  4. 4.Best estimate of 98 × 6? (a) 6000 (b) 60 (c) 600 (d) 1200
  5. 5.68 × 50 =
  6. 6.7 + 2 + 2 + 8 + 2 =
  7. 7.447 − 26 =
  8. 8.₹26.65 − ₹10.45 =
  9. 9.86 × 50 =
  10. 10.1400 ÷ 25 =
  11. 11.800 ÷ 25 =
  12. 12.7 + 8 + 3 + 6 =
  13. 13.32 × 50 =
  14. 14.114 × 4 =
  15. 15.127 − 37 =
  16. 16.29² =
  17. 17.537 − 77 =
  18. 18.5 + 6 + 7 + 5 =
  19. 19.162 + 48 =
  20. 20.10% of 720 =
  21. 21.41² =
  22. 22.4 + 7 + 2 + 4 + 3 =
  23. 23.79² =
  24. 24.93 × 5 =
  25. 25.433 − 78 =
  26. 26.21 × 8 =
  27. 27.33 + 23 + 38 + 82 =
  28. 28.1150 ÷ 25 =
  29. 29.13 × 13 =
  30. 30.133 + 19 =
  31. 31.30 × 15 =
  32. 32.37 × 15 =
  33. 33.150 ÷ 25 =
  34. 34.138 + 39 =
  35. 35.50% of 300 =
  36. 36.Check with nines: 28 × 49 = 1372. Correct or wrong? (a) correct (b) wrong
  37. 37.Check with nines: 408 + 975 = 1389. Correct or wrong? (a) correct (b) wrong
  38. 38.₹77.15 − ₹29.40 =
  39. 39.121 − 67 =
  40. 40.5% of 840 =

Answer key

  1. 306
  2. 20
  3. 340
  4. 600
  5. 3400
  6. 21
  7. 421
  8. 16.2
  9. 4300
  10. 56
  11. 32
  12. 24
  13. 1600
  14. 456
  15. 90
  16. 841
  17. 460
  18. 23
  19. 210
  20. 72
  21. 1681
  22. 20
  23. 6241
  24. 465
  25. 355
  26. 168
  27. 176
  28. 46
  29. 169
  30. 152
  31. 450
  32. 555
  33. 6
  34. 177
  35. 150
  36. correct
  37. wrong
  38. 47.75
  39. 54
  40. 42

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