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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 439 · 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. 1.12 × 11 =
  2. 2.15 × 15 =
  3. 3.₹70.50 + ₹14.35 =
  4. 4.10 × 15 =
  5. 5.28 × 5 =
  6. 6.63 + 18 + 26 + 25 =
  7. 7.137 + 68 =
  8. 8.950 ÷ 25 =
  9. 9.186 + 28 =
  10. 10.205 ÷ 5 =
  11. 11.16 × 8 =
  12. 12.Check with nines: 794 + 720 = 1517. Correct or wrong? (a) correct (b) wrong
  13. 13.15 + 47 + 26 + 89 =
  14. 14.351 − 19 =
  15. 15.1% of 420 =
  16. 16.18 × 11 =
  17. 17.₹15.70 − ₹10.80 =
  18. 18.4 + 9 + 2 + 6 =
  19. 19.6 × 15 =
  20. 20.19 + 37 + 64 + 17 =
  21. 21.Best estimate of 89 × 71? (a) 63000 (b) 12600 (c) 630 (d) 6300
  22. 22.72 × 50 =
  23. 23.13 × 15 =
  24. 24.₹66.05 − ₹48.80 =
  25. 25.455 − 78 =
  26. 26.₹8.65 + ₹46.50 =
  27. 27.₹81.80 + ₹6.10 =
  28. 28.25% of 420 =
  29. 29.449 − 76 =
  30. 30.Best estimate of 197 × 5? (a) 100 (b) 2000 (c) 1000 (d) 10000
  31. 31.Check with nines: 27 × 91 = 2463. Correct or wrong? (a) wrong (b) correct
  32. 32.17 × 15 =
  33. 33.181 + 29 =
  34. 34.243 − 68 =
  35. 35.5 + 6 + 9 + 5 + 1 =
  36. 36.276 + 48 =
  37. 37.525 − 76 =
  38. 38.₹86.40 + ₹36.40 =
  39. 39.12 × 19 =
  40. 40.18 × 13 =

Answer key

  1. 132
  2. 225
  3. 84.85
  4. 150
  5. 140
  6. 132
  7. 205
  8. 38
  9. 214
  10. 41
  11. 128
  12. wrong
  13. 177
  14. 332
  15. 4.2
  16. 198
  17. 4.9
  18. 21
  19. 90
  20. 137
  21. 6300
  22. 3600
  23. 195
  24. 17.25
  25. 377
  26. 55.15
  27. 87.9
  28. 105
  29. 373
  30. 1000
  31. wrong
  32. 255
  33. 210
  34. 175
  35. 26
  36. 324
  37. 449
  38. 122.8
  39. 228
  40. 234

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