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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 976 · 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. 1.50% of 690 =
  2. 2.28 + 37 + 22 + 72 =
  3. 3.65 × 8 =
  4. 4.43 × 8 =
  5. 5.18 × 15 =
  6. 6.143 − 66 =
  7. 7.₹52.15 + ₹4.10 =
  8. 8.Best estimate of 598 × 4? (a) 24000 (b) 4800 (c) 2400 (d) 240
  9. 9.₹48.30 + ₹17.65 =
  10. 10.₹24.35 − ₹23.40 =
  11. 11.47 × 50 =
  12. 12.Check with nines: 856 + 353 = 1209. Correct or wrong? (a) correct (b) wrong
  13. 13.Check with nines: 181 + 387 = 568. Correct or wrong? (a) correct (b) wrong
  14. 14.17 × 19 =
  15. 15.20% of 340 =
  16. 16.Check with nines: 12 × 40 = 486. Correct or wrong? (a) wrong (b) correct
  17. 17.68 + 82 + 29 + 66 =
  18. 18.100 + 37 =
  19. 19.Best estimate of 697 × 3? (a) 2100 (b) 210 (c) 4200 (d) 21000
  20. 20.37 × 50 =
  21. 21.165 + 98 =
  22. 22.₹99.20 − ₹38.50 =
  23. 23.18 × 15 =
  24. 24.1 + 7 + 4 + 3 + 5 =
  25. 25.100 − 58 =
  26. 26.₹10.35 + ₹43.35 =
  27. 27.7 + 3 + 2 + 7 + 9 =
  28. 28.17 × 13 =
  29. 29.20% of 50 =
  30. 30.51 × 5 =
  31. 31.₹8.80 + ₹22.10 =
  32. 32.113 + 97 =
  33. 33.₹18.75 − ₹7.35 =
  34. 34.46 × 4 =
  35. 35.6 + 8 + 4 + 2 =
  36. 36.575 ÷ 5 =
  37. 37.Check with nines: 95 × 98 = 9310. Correct or wrong? (a) wrong (b) correct
  38. 38.22 × 15 =
  39. 39.236 − 48 =
  40. 40.15 + 46 + 66 + 22 =

Answer key

  1. 345
  2. 159
  3. 520
  4. 344
  5. 270
  6. 77
  7. 56.25
  8. 2400
  9. 65.95
  10. 0.95
  11. 2350
  12. correct
  13. correct
  14. 323
  15. 68
  16. wrong
  17. 245
  18. 137
  19. 2100
  20. 1850
  21. 263
  22. 60.7
  23. 270
  24. 20
  25. 42
  26. 53.7
  27. 28
  28. 221
  29. 10
  30. 255
  31. 30.9
  32. 210
  33. 11.4
  34. 184
  35. 20
  36. 115
  37. correct
  38. 330
  39. 188
  40. 149

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