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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 322 · 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. 1.50% of 330 =
  2. 2.19² =
  3. 3.278 + 18 =
  4. 4.17 × 12 =
  5. 5.235 − 77 =
  6. 6.15 × 5 =
  7. 7.Check with nines: 521 + 446 = 967. Correct or wrong? (a) correct (b) wrong
  8. 8.955 ÷ 5 =
  9. 9.82 + 87 + 74 + 38 =
  10. 10.Best estimate of 101 × 3? (a) 30 (b) 600 (c) 300 (d) 3000
  11. 11.74 × 50 =
  12. 12.177 + 27 =
  13. 13.47 + 58 =
  14. 14.Check with nines: 945 + 972 = 1916. Correct or wrong? (a) correct (b) wrong
  15. 15.183 − 79 =
  16. 16.₹66.10 + ₹40.40 =
  17. 17.362 − 88 =
  18. 18.23 × 5 =
  19. 19.18 × 11 =
  20. 20.225 + 97 =
  21. 21.25 × 15 =
  22. 22.Best estimate of 29 × 28? (a) 90 (b) 900 (c) 9000 (d) 1800
  23. 23.16 × 14 =
  24. 24.50% of 580 =
  25. 25.Check with nines: 296 + 152 = 448. Correct or wrong? (a) correct (b) wrong
  26. 26.Best estimate of 399 × 3? (a) 120 (b) 1200 (c) 2400 (d) 12000
  27. 27.26 × 5 =
  28. 28.20% of 290 =
  29. 29.730 ÷ 5 =
  30. 30.14 × 12 =
  31. 31.51² =
  32. 32.1200 ÷ 25 =
  33. 33.800 ÷ 50 =
  34. 34.20% of 620 =
  35. 35.25% of 600 =
  36. 36.6 + 1 + 3 + 9 + 7 =
  37. 37.89² =
  38. 38.13 × 19 =
  39. 39.22 × 8 =
  40. 40.133 × 4 =

Answer key

  1. 165
  2. 361
  3. 296
  4. 204
  5. 158
  6. 75
  7. correct
  8. 191
  9. 281
  10. 300
  11. 3700
  12. 204
  13. 105
  14. wrong
  15. 104
  16. 106.5
  17. 274
  18. 115
  19. 198
  20. 322
  21. 375
  22. 900
  23. 224
  24. 290
  25. correct
  26. 1200
  27. 130
  28. 58
  29. 146
  30. 168
  31. 2601
  32. 48
  33. 16
  34. 124
  35. 150
  36. 26
  37. 7921
  38. 247
  39. 176
  40. 532

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