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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 280 · 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. 1.26 + 55 + 69 + 40 =
  2. 2.87 × 5 =
  3. 3.53 × 5 =
  4. 4.24 × 5 =
  5. 5.141 + 27 =
  6. 6.Check with nines: 16 × 92 = 1472. Correct or wrong? (a) correct (b) wrong
  7. 7.39 × 15 =
  8. 8.389 − 27 =
  9. 9.13 × 11 =
  10. 10.₹21.75 − ₹19.65 =
  11. 11.₹58.05 + ₹9.30 =
  12. 12.1325 ÷ 25 =
  13. 13.139 + 48 =
  14. 14.29² =
  15. 15.205 ÷ 5 =
  16. 16.38 × 5 =
  17. 17.449 − 57 =
  18. 18.₹33.40 − ₹6.10 =
  19. 19.38 + 54 + 58 + 86 =
  20. 20.95 − 17 =
  21. 21.540 − 36 =
  22. 22.₹14.75 + ₹49.10 =
  23. 23.154 + 48 =
  24. 24.89² =
  25. 25.Check with nines: 292 + 442 = 739. Correct or wrong? (a) correct (b) wrong
  26. 26.463 − 37 =
  27. 27.Best estimate of 703 × 4? (a) 5600 (b) 28000 (c) 280 (d) 2800
  28. 28.84 + 17 + 51 + 27 =
  29. 29.246 − 78 =
  30. 30.93 × 50 =
  31. 31.64 × 50 =
  32. 32.179 + 49 =
  33. 33.84 + 24 + 17 + 58 =
  34. 34.153 × 4 =
  35. 35.Best estimate of 503 × 9? (a) 450 (b) 45000 (c) 4500 (d) 9000
  36. 36.4 + 6 + 1 + 8 =
  37. 37.15% of 490 =
  38. 38.200 + 17 =
  39. 39.700 ÷ 5 =
  40. 40.161 − 66 =

Answer key

  1. 190
  2. 435
  3. 265
  4. 120
  5. 168
  6. correct
  7. 585
  8. 362
  9. 143
  10. 2.1
  11. 67.35
  12. 53
  13. 187
  14. 841
  15. 41
  16. 190
  17. 392
  18. 27.3
  19. 236
  20. 78
  21. 504
  22. 63.85
  23. 202
  24. 7921
  25. wrong
  26. 426
  27. 2800
  28. 179
  29. 168
  30. 4650
  31. 3200
  32. 228
  33. 183
  34. 612
  35. 4500
  36. 19
  37. 73.5
  38. 217
  39. 140
  40. 95

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