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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 765 · 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. 1.16 × 14 =
  2. 2.₹60.75 − ₹4.90 =
  3. 3.591 − 58 =
  4. 4.6 + 6 + 4 + 1 =
  5. 5.287 − 19 =
  6. 6.550 ÷ 25 =
  7. 7.705 ÷ 5 =
  8. 8.375 ÷ 25 =
  9. 9.Check with nines: 293 + 146 = 438. Correct or wrong? (a) correct (b) wrong
  10. 10.35 + 29 + 88 + 20 =
  11. 11.15 × 13 =
  12. 12.₹15.05 + ₹46.35 =
  13. 13.21 × 15 =
  14. 14.Check with nines: 86 × 16 = 1370. Correct or wrong? (a) wrong (b) correct
  15. 15.1900 ÷ 50 =
  16. 16.541 − 48 =
  17. 17.975 ÷ 25 =
  18. 18.200 − 46 =
  19. 19.320 − 59 =
  20. 20.85 + 78 =
  21. 21.529 − 66 =
  22. 22.12 × 11 =
  23. 23.₹48.25 − ₹11.40 =
  24. 24.162 + 87 =
  25. 25.31² =
  26. 26.486 + 98 =
  27. 27.111 + 59 =
  28. 28.650 ÷ 25 =
  29. 29.96 − 58 =
  30. 30.29² =
  31. 31.33 × 15 =
  32. 32.5 + 6 + 9 + 2 + 8 =
  33. 33.49 × 50 =
  34. 34.483 + 88 =
  35. 35.Check with nines: 161 + 182 = 343. Correct or wrong? (a) correct (b) wrong
  36. 36.₹60.35 − ₹39.20 =
  37. 37.₹93.15 + ₹24.80 =
  38. 38.3 + 7 + 9 + 8 + 3 =
  39. 39.Check with nines: 274 + 375 = 649. Correct or wrong? (a) wrong (b) correct
  40. 40.20% of 830 =

Answer key

  1. 224
  2. 55.85
  3. 533
  4. 17
  5. 268
  6. 22
  7. 141
  8. 15
  9. wrong
  10. 172
  11. 195
  12. 61.4
  13. 315
  14. wrong
  15. 38
  16. 493
  17. 39
  18. 154
  19. 261
  20. 163
  21. 463
  22. 132
  23. 36.85
  24. 249
  25. 961
  26. 584
  27. 170
  28. 26
  29. 38
  30. 841
  31. 495
  32. 30
  33. 2450
  34. 571
  35. correct
  36. 21.15
  37. 117.95
  38. 30
  39. correct
  40. 166

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