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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 346 · 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. 1.39² =
  2. 2.1100 ÷ 50 =
  3. 3.₹71.50 + ₹49.35 =
  4. 4.19² =
  5. 5.12 × 13 =
  6. 6.15 × 8 =
  7. 7.500 − 89 =
  8. 8.269 − 67 =
  9. 9.10% of 730 =
  10. 10.80 + 72 + 79 + 36 =
  11. 11.17 × 19 =
  12. 12.Check with nines: 77 × 22 = 1694. Correct or wrong? (a) correct (b) wrong
  13. 13.Best estimate of 402 × 4? (a) 1600 (b) 3200 (c) 16000 (d) 160
  14. 14.50% of 100 =
  15. 15.28 × 50 =
  16. 16.90 × 50 =
  17. 17.13 × 13 =
  18. 18.36 × 15 =
  19. 19.383 + 98 =
  20. 20.488 + 87 =
  21. 21.Check with nines: 44 × 53 = 2332. Correct or wrong? (a) correct (b) wrong
  22. 22.538 − 38 =
  23. 23.₹39.70 − ₹11.55 =
  24. 24.Best estimate of 52 × 22? (a) 2000 (b) 1000 (c) 100 (d) 10000
  25. 25.48 × 8 =
  26. 26.22 × 4 =
  27. 27.70 + 87 + 88 + 62 =
  28. 28.Best estimate of 71 × 52? (a) 35000 (b) 350 (c) 7000 (d) 3500
  29. 29.5 + 9 + 6 + 4 + 6 =
  30. 30.41² =
  31. 31.50% of 60 =
  32. 32.64 × 50 =
  33. 33.₹66.40 + ₹41.40 =
  34. 34.60 × 8 =
  35. 35.21 + 34 + 75 + 36 =
  36. 36.37 × 4 =
  37. 37.584 − 17 =
  38. 38.88 + 57 =
  39. 39.97 × 5 =
  40. 40.73 + 12 + 72 + 59 =

Answer key

  1. 1521
  2. 22
  3. 120.85
  4. 361
  5. 156
  6. 120
  7. 411
  8. 202
  9. 73
  10. 267
  11. 323
  12. correct
  13. 1600
  14. 50
  15. 1400
  16. 4500
  17. 169
  18. 540
  19. 481
  20. 575
  21. correct
  22. 500
  23. 28.15
  24. 1000
  25. 384
  26. 88
  27. 307
  28. 3500
  29. 30
  30. 1681
  31. 30
  32. 3200
  33. 107.8
  34. 480
  35. 166
  36. 148
  37. 567
  38. 145
  39. 485
  40. 216

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