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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 155 · 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. 1.11 × 17 =
  2. 2.₹33.95 − ₹20.30 =
  3. 3.₹48.20 + ₹8.80 =
  4. 4.₹15.95 − ₹6.60 =
  5. 5.1000 ÷ 50 =
  6. 6.₹29.30 + ₹22.35 =
  7. 7.10 × 15 =
  8. 8.12 × 14 =
  9. 9.419 − 86 =
  10. 10.74 × 5 =
  11. 11.96 × 5 =
  12. 12.13 + 33 + 43 + 67 =
  13. 13.44 × 15 =
  14. 14.48 × 4 =
  15. 15.10% of 570 =
  16. 16.28 × 4 =
  17. 17.219 − 67 =
  18. 18.8 × 15 =
  19. 19.229 + 19 =
  20. 20.73 × 4 =
  21. 21.20% of 490 =
  22. 22.79² =
  23. 23.Check with nines: 179 + 537 = 716. Correct or wrong? (a) wrong (b) correct
  24. 24.Check with nines: 280 + 512 = 792. Correct or wrong? (a) correct (b) wrong
  25. 25.48 × 15 =
  26. 26.₹49.95 + ₹8.30 =
  27. 27.13 × 5 =
  28. 28.₹54.90 + ₹31.20 =
  29. 29.255 ÷ 5 =
  30. 30.61 × 8 =
  31. 31.278 + 57 =
  32. 32.541 − 36 =
  33. 33.29² =
  34. 34.50% of 900 =
  35. 35.50 × 15 =
  36. 36.Best estimate of 201 × 5? (a) 1000 (b) 2000 (c) 10000 (d) 100
  37. 37.20% of 170 =
  38. 38.38 × 50 =
  39. 39.Check with nines: 736 + 907 = 1639. Correct or wrong? (a) correct (b) wrong
  40. 40.555 − 96 =

Answer key

  1. 187
  2. 13.65
  3. 57
  4. 9.35
  5. 20
  6. 51.65
  7. 150
  8. 168
  9. 333
  10. 370
  11. 480
  12. 156
  13. 660
  14. 192
  15. 57
  16. 112
  17. 152
  18. 120
  19. 248
  20. 292
  21. 98
  22. 6241
  23. correct
  24. correct
  25. 720
  26. 58.25
  27. 65
  28. 86.1
  29. 51
  30. 488
  31. 335
  32. 505
  33. 841
  34. 450
  35. 750
  36. 1000
  37. 34
  38. 1900
  39. wrong
  40. 459

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