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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 468 · 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.₹59.50 + ₹48.75 =
  2. 2.Check with nines: 515 + 857 = 1378. Correct or wrong? (a) correct (b) wrong
  3. 3.67 × 4 =
  4. 4.825 ÷ 25 =
  5. 5.₹98.25 + ₹11.65 =
  6. 6.512 − 18 =
  7. 7.16 × 14 =
  8. 8.18 × 11 =
  9. 9.78 × 50 =
  10. 10.12 × 13 =
  11. 11.Check with nines: 44 × 63 = 2773. Correct or wrong? (a) wrong (b) correct
  12. 12.50% of 60 =
  13. 13.49 × 15 =
  14. 14.340 ÷ 5 =
  15. 15.583 − 99 =
  16. 16.₹84.20 + ₹35.25 =
  17. 17.336 + 38 =
  18. 18.₹63.20 − ₹19.10 =
  19. 19.Best estimate of 49 × 38? (a) 2000 (b) 20000 (c) 200 (d) 4000
  20. 20.8 + 7 + 2 + 7 + 5 =
  21. 21.200 ÷ 5 =
  22. 22.357 − 99 =
  23. 23.Best estimate of 28 × 28? (a) 900 (b) 9000 (c) 90 (d) 1800
  24. 24.₹33.30 − ₹20.95 =
  25. 25.39² =
  26. 26.22 × 15 =
  27. 27.21² =
  28. 28.1500 ÷ 25 =
  29. 29.8 × 15 =
  30. 30.385 + 29 =
  31. 31.36 × 15 =
  32. 32.6 + 8 + 4 + 4 =
  33. 33.297 + 57 =
  34. 34.16 × 18 =
  35. 35.50 × 15 =
  36. 36.89² =
  37. 37.54 + 55 + 48 + 31 =
  38. 38.₹20.40 + ₹3.05 =
  39. 39.310 ÷ 5 =
  40. 40.875 ÷ 25 =

Answer key

  1. 108.25
  2. wrong
  3. 268
  4. 33
  5. 109.9
  6. 494
  7. 224
  8. 198
  9. 3900
  10. 156
  11. wrong
  12. 30
  13. 735
  14. 68
  15. 484
  16. 119.45
  17. 374
  18. 44.1
  19. 2000
  20. 29
  21. 40
  22. 258
  23. 900
  24. 12.35
  25. 1521
  26. 330
  27. 441
  28. 60
  29. 120
  30. 414
  31. 540
  32. 22
  33. 354
  34. 288
  35. 750
  36. 7921
  37. 188
  38. 23.45
  39. 62
  40. 35

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