← Mixed trick challenge lesson New set →

Maths Tricks Practice Worksheet

Maths tricks trick 15: Mixed trick challenge · Set 134 · 40 questions
TalentJR

The trick (Choose a trick): × 9 → finger trick; × 4 → double double; × 10, 100, 1000 → slide and add zeros. 37, 12345679 or 111… → magic patterns; reverse and subtract → 1089. Puzzles: find the rule, the total or the leftover days, then check your answer.

NameDateTime takenScore ___ / 40
  1. 1.594 + 495 =
  2. 2.7 × 9 =
  3. 3.45 × ? = 45000
  4. 4.9 × 2 = 1? — what is the missing digit?
  5. 5.Magic square (every row, column and diagonal has the same total): 10 31 16 | ? 19 13 | 22 7 28. What is the missing number?
  6. 6.9 × 9 = ?1 — what is the missing digit?
  7. 7.Half of 86 =
  8. 8.416 × ? = 4160
  9. 9.I thought of a number, multiplied it by 3 and added 9. I got 15. What was my number?
  10. 10.9 × 3 = 2? — what is the missing digit?
  11. 11.8 × ? = 8000
  12. 12.13 × ? = 13000
  13. 13.I thought of a number, multiplied it by 3 and added 4. I got 16. What was my number?
  14. 14.3 × 9 =
  15. 15.Magic square (every row, column and diagonal has the same total): 10 24 14 | 20 16 12 | 18 ? 22. What is the missing number?
  16. 16.9 × 6 = 5? — what is the missing digit?
  17. 17.Magic square (every row, column and diagonal has the same total): 6 5 10 | ? 7 3 | 4 9 8. What is the missing number?
  18. 18.Magic square (every row, column and diagonal has the same total): 9 4 5 | 2 ? 10 | 7 8 3. What is the missing number?
  19. 19.I thought of a number, multiplied it by 3 and added 9. I got 45. What was my number?
  20. 20.9 × 3 = ?7 — what is the missing digit?
  21. 21.The ages of two twins add up to 28. How old is each twin?
  22. 22.1 + 2 + 3 + … + 65 =
  23. 23.9 × 7 =
  24. 24.12345679 × 72 =
  25. 25.2 × 9 =
  26. 26.Odd one out: which number is NOT in the 3 times table? (a) 6 (b) 10 (c) 18 (d) 12
  27. 27.9 × 2 =
  28. 28.10 × 9 =
  29. 29.The 7th of a month is a Thursday. What day is the 27th of the same month? (a) Thursday (b) Tuesday (c) Saturday (d) Wednesday
  30. 30.38 × 1000 =
  31. 31.What comes next? 3, 6, 12, 24, ? (a) 49 (b) 36 (c) 48 (d) 42
  32. 32.9 × 10 =
  33. 33.58 × 4 =
  34. 34.Double 34 =
  35. 35.Magic square (every row, column and diagonal has the same total): 27 12 ? | 6 18 30 | 21 24 9. What is the missing number?
  36. 36.What comes next? 17, 23, 29, 35, ? (a) 35 (b) 47 (c) 41 (d) 42
  37. 37.123456 × 9 + 7 =
  38. 38.In 2 years a boy will be 15 years old. How old was he 7 years ago?
  39. 39.Take 188. Reverse its digits and take the smaller number away from the bigger one. What do you get?
  40. 40.What comes next? 16, 25, 36, 49, ? (a) 62 (b) 65 (c) 64 (d) 66

Answer key

  1. 1089
  2. 63
  3. 1000
  4. 8
  5. 25
  6. 8
  7. 43
  8. 10
  9. 2
  10. 7
  11. 1000
  12. 1000
  13. 4
  14. 27
  15. 8
  16. 4
  17. 11
  18. 6
  19. 12
  20. 2
  21. 14
  22. 2145
  23. 63
  24. 888888888
  25. 18
  26. 10
  27. 18
  28. 90
  29. Wednesday
  30. 38000
  31. 48
  32. 90
  33. 232
  34. 68
  35. 15
  36. 41
  37. 1111111
  38. 6
  39. 693
  40. 64

Free maths tricks lessons, practice and worksheets at talentjr.in/maths-tricks