← Mixed trick challenge lesson New set →

Maths Tricks Practice Worksheet

Maths tricks trick 15: Mixed trick challenge · Set 620 · 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.What comes next? 11, 17, 23, 29, ? (a) 36 (b) 41 (c) 35 (d) 29
  2. 2.9 × 2 = 1? — what is the missing digit?
  3. 3.What comes next? 5, 13, 21, 29, ? (a) 45 (b) 37 (c) 38 (d) 29
  4. 4.Magic trick! Think of 19. Double it, add 14, halve it, then take away 19. What number do you get?
  5. 5.1 + 2 + 3 + … + 22 =
  6. 6.You have 6 coins. Each coin is ₹1 or ₹2, and together they make ₹10. How many ₹2 coins do you have?
  7. 7.The 8th of a month is a Sunday. What day is the 16th of the same month? (a) Thursday (b) Sunday (c) Tuesday (d) Monday
  8. 8.If today is Tuesday, what day was it 37 days ago? (a) Monday (b) Saturday (c) Sunday (d) Wednesday
  9. 9.12345679 × 9 =
  10. 10.I thought of a number, multiplied it by 4 and added 2. I got 62. What was my number?
  11. 11.Magic square (every row, column and diagonal has the same total): 18 21 6 | 3 15 ? | 24 9 12. What is the missing number?
  12. 12.9 × 3 = ?7 — what is the missing digit?
  13. 13.Half of 122 =
  14. 14.49 × 4 =
  15. 15.9 × 4 = ?6 — what is the missing digit?
  16. 16.238 × 10 =
  17. 17.1 + 2 + 3 + … + 75 =
  18. 18.6 × 9 =
  19. 19.9 × 9 =
  20. 20.9 × 7 =
  21. 21.60 × 4 =
  22. 22.If today is Monday, what day will it be after 73 days? (a) Sunday (b) Wednesday (c) Thursday (d) Friday
  23. 23.6 × 100 =
  24. 24.I thought of a number, multiplied it by 3 and added 3. I got 33. What was my number?
  25. 25.I thought of a number, added 6 and then doubled it. I got 48. What was my number?
  26. 26.I thought of a number, added 4 and then doubled it. I got 26. What was my number?
  27. 27.?32 is in the 9 times table. One digit is hidden, and it is not 0. What is the hidden digit?
  28. 28.Magic trick! Think of 5. Double it, add 16, halve it, then take away 5. What number do you get?
  29. 29.9 × 8 = ?2 — what is the missing digit?
  30. 30.65 × 100 =
  31. 31.I thought of a number, multiplied it by 4 and added 1. I got 29. What was my number?
  32. 32.891 + 198 =
  33. 33.111 × 111 =
  34. 34.9 × 1 =
  35. 35.518 × ? = 5180
  36. 36.9 × 5 = ?5 — what is the missing digit?
  37. 37.27 × 10 =
  38. 38.Take 248. Reverse its digits and take the smaller number away from the bigger one. What do you get?
  39. 39.The 9th of a month is a Monday. What day is the 30th of the same month? (a) Tuesday (b) Sunday (c) Thursday (d) Monday
  40. 40.761 × 10 =

Answer key

  1. 35
  2. 8
  3. 37
  4. 7
  5. 253
  6. 4
  7. Monday
  8. Sunday
  9. 111111111
  10. 15
  11. 27
  12. 2
  13. 61
  14. 196
  15. 3
  16. 2380
  17. 2850
  18. 54
  19. 81
  20. 63
  21. 240
  22. Thursday
  23. 600
  24. 10
  25. 18
  26. 9
  27. 4
  28. 8
  29. 7
  30. 6500
  31. 7
  32. 1089
  33. 12321
  34. 9
  35. 10
  36. 4
  37. 270
  38. 594
  39. Monday
  40. 7610

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