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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 807 · 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.₹27.15 − ₹3.75 =
  2. 2.12 × 19 =
  3. 3.71² =
  4. 4.108 × 4 =
  5. 5.₹91.75 + ₹9.80 =
  6. 6.68 + 73 + 73 + 66 =
  7. 7.₹98.50 − ₹45.45 =
  8. 8.576 − 88 =
  9. 9.5% of 390 =
  10. 10.61 − 29 =
  11. 11.20% of 870 =
  12. 12.₹55.10 − ₹38.70 =
  13. 13.59² =
  14. 14.34 × 15 =
  15. 15.10% of 340 =
  16. 16.13 × 13 =
  17. 17.5% of 290 =
  18. 18.Best estimate of 203 × 8? (a) 1600 (b) 160 (c) 3200 (d) 16000
  19. 19.1% of 810 =
  20. 20.25% of 820 =
  21. 21.Check with nines: 644 + 322 = 966. Correct or wrong? (a) wrong (b) correct
  22. 22.₹70.85 + ₹44.05 =
  23. 23.15 × 13 =
  24. 24.16 × 15 =
  25. 25.Check with nines: 18 × 23 = 414. Correct or wrong? (a) correct (b) wrong
  26. 26.87 + 19 + 77 + 18 =
  27. 27.9 + 2 + 6 + 6 + 4 =
  28. 28.₹46.20 − ₹32.50 =
  29. 29.387 + 17 =
  30. 30.₹47.90 − ₹33.30 =
  31. 31.67 × 50 =
  32. 32.413 + 67 =
  33. 33.335 + 38 =
  34. 34.27 × 4 =
  35. 35.103 + 89 =
  36. 36.12 × 19 =
  37. 37.18 × 15 =
  38. 38.160 + 28 =
  39. 39.200 ÷ 25 =
  40. 40.12 × 19 =

Answer key

  1. 23.4
  2. 228
  3. 5041
  4. 432
  5. 101.55
  6. 280
  7. 53.05
  8. 488
  9. 19.5
  10. 32
  11. 174
  12. 16.4
  13. 3481
  14. 510
  15. 34
  16. 169
  17. 14.5
  18. 1600
  19. 8.1
  20. 205
  21. correct
  22. 114.9
  23. 195
  24. 240
  25. correct
  26. 201
  27. 27
  28. 13.7
  29. 404
  30. 14.6
  31. 3350
  32. 480
  33. 373
  34. 108
  35. 192
  36. 228
  37. 270
  38. 188
  39. 8
  40. 228

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