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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 442 · 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. 1.11 × 15 =
  2. 2.375 ÷ 5 =
  3. 3.332 − 97 =
  4. 4.76 + 63 + 44 + 24 =
  5. 5.60 × 8 =
  6. 6.500 ÷ 50 =
  7. 7.12 × 16 =
  8. 8.₹64.30 − ₹6.75 =
  9. 9.150 × 4 =
  10. 10.₹86.60 + ₹37.35 =
  11. 11.Check with nines: 609 + 929 = 1538. Correct or wrong? (a) wrong (b) correct
  12. 12.471 − 97 =
  13. 13.₹45.40 − ₹13.80 =
  14. 14.5% of 260 =
  15. 15.252 − 29 =
  16. 16.18 + 43 + 80 + 13 =
  17. 17.Check with nines: 22 × 62 = 1368. Correct or wrong? (a) correct (b) wrong
  18. 18.9 + 1 + 3 + 3 =
  19. 19.6 + 9 + 1 + 9 + 4 =
  20. 20.11 × 15 =
  21. 21.700 ÷ 25 =
  22. 22.₹42.10 − ₹28.20 =
  23. 23.29 × 4 =
  24. 24.54 + 24 + 87 + 35 =
  25. 25.379 − 99 =
  26. 26.91² =
  27. 27.34 + 42 + 37 + 64 =
  28. 28.Best estimate of 32 × 38? (a) 2400 (b) 1200 (c) 12000 (d) 120
  29. 29.2 + 9 + 5 + 5 + 3 =
  30. 30.8 + 5 + 5 + 5 =
  31. 31.₹53.85 + ₹6.20 =
  32. 32.18 × 8 =
  33. 33.Best estimate of 18 × 22? (a) 4000 (b) 40 (c) 400 (d) 800
  34. 34.62 × 15 =
  35. 35.41 × 50 =
  36. 36.61² =
  37. 37.239 + 59 =
  38. 38.17 × 19 =
  39. 39.86 × 50 =
  40. 40.₹29.30 + ₹41.80 =

Answer key

  1. 165
  2. 75
  3. 235
  4. 207
  5. 480
  6. 10
  7. 192
  8. 57.55
  9. 600
  10. 123.95
  11. correct
  12. 374
  13. 31.6
  14. 13
  15. 223
  16. 154
  17. wrong
  18. 16
  19. 29
  20. 165
  21. 28
  22. 13.9
  23. 116
  24. 200
  25. 280
  26. 8281
  27. 177
  28. 1200
  29. 24
  30. 23
  31. 60.05
  32. 144
  33. 400
  34. 930
  35. 2050
  36. 3721
  37. 298
  38. 323
  39. 4300
  40. 71.1

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