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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 801 · 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. 1.25% of 870 =
  2. 2.5 + 9 + 1 + 8 =
  3. 3.202 − 39 =
  4. 4.5% of 230 =
  5. 5.33 + 71 + 15 + 17 =
  6. 6.44 × 15 =
  7. 7.192 + 98 =
  8. 8.85 + 21 + 69 + 73 =
  9. 9.71 × 8 =
  10. 10.605 ÷ 5 =
  11. 11.Check with nines: 55 × 93 = 5115. Correct or wrong? (a) correct (b) wrong
  12. 12.13 × 17 =
  13. 13.20% of 100 =
  14. 14.463 + 67 =
  15. 15.19 × 19 =
  16. 16.6 + 4 + 4 + 3 =
  17. 17.2 + 4 + 6 + 5 =
  18. 18.20 × 50 =
  19. 19.4 + 6 + 3 + 3 + 3 =
  20. 20.Best estimate of 71 × 42? (a) 2800 (b) 28000 (c) 5600 (d) 280
  21. 21.5% of 470 =
  22. 22.328 + 98 =
  23. 23.573 − 69 =
  24. 24.141 × 4 =
  25. 25.16 × 11 =
  26. 26.6 + 5 + 4 + 6 + 8 =
  27. 27.16 × 8 =
  28. 28.474 + 18 =
  29. 29.415 + 88 =
  30. 30.₹10.85 + ₹44.25 =
  31. 31.370 + 69 =
  32. 32.41 × 50 =
  33. 33.9 + 8 + 1 + 2 + 1 =
  34. 34.14 × 16 =
  35. 35.392 − 36 =
  36. 36.1275 ÷ 25 =
  37. 37.Best estimate of 68 × 32? (a) 210 (b) 21000 (c) 2100 (d) 4200
  38. 38.217 − 68 =
  39. 39.14 × 11 =
  40. 40.₹65.35 + ₹4.75 =

Answer key

  1. 217.5
  2. 23
  3. 163
  4. 11.5
  5. 136
  6. 660
  7. 290
  8. 248
  9. 568
  10. 121
  11. correct
  12. 221
  13. 20
  14. 530
  15. 361
  16. 17
  17. 17
  18. 1000
  19. 19
  20. 2800
  21. 23.5
  22. 426
  23. 504
  24. 564
  25. 176
  26. 29
  27. 128
  28. 492
  29. 503
  30. 55.1
  31. 439
  32. 2050
  33. 21
  34. 224
  35. 356
  36. 51
  37. 2100
  38. 149
  39. 154
  40. 70.1

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