← Mixed trick challenge lesson New set →

Maths Tricks Practice Worksheet

Maths tricks trick 15: Mixed trick challenge · Set 912 · 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? 2, 4, 8, 16, ? (a) 33 (b) 32 (c) 24 (d) 28
  2. 2.93 × 100 =
  3. 3.9 × 5 = ?5 — what is the missing digit?
  4. 4.Take 260. Reverse its digits and take the smaller number away from the bigger one. What do you get?
  5. 5.10 × 9 =
  6. 6.Think of 10. Multiply it by 2, then add 6. What number do you end with?
  7. 7.5 × 9 =
  8. 8.What comes next? 4, 8, 16, 32, ? (a) 56 (b) 64 (c) 65 (d) 48
  9. 9.99 × 100 =
  10. 10.Magic square (every row, column and diagonal has the same total): 6 11 4 | 5 7 9 | 10 ? 8. What is the missing number?
  11. 11.What comes next? 16, 25, 36, 49, ? (a) 64 (b) 62 (c) 65 (d) 66
  12. 12.The 6th of a month is a Sunday. What day is the 27th of the same month? (a) Wednesday (b) Monday (c) Saturday (d) Sunday
  13. 13.395 × 10 =
  14. 14.Magic square (every row, column and diagonal has the same total): 4 14 12 | 18 10 2 | 8 ? 16. What is the missing number?
  15. 15.A piggy bank has 10 coins of ₹5 and 10 coins of ₹2. How many rupees are in it?
  16. 16.1 + 2 + 3 + … + 60 =
  17. 17.Magic square (every row, column and diagonal has the same total): 15 10 11 | 8 12 16 | 13 ? 9. What is the missing number?
  18. 18.The 6th of a month is a Thursday. What day is the 18th of the same month? (a) Wednesday (b) Tuesday (c) Friday (d) Monday
  19. 19.9 × 8 = 7? — what is the missing digit?
  20. 20.What comes next? 3, 10, 17, 24, ? (a) 38 (b) 31 (c) 24 (d) 32
  21. 21.A piggy bank has 3 coins of ₹5 and 5 coins of ₹2. How many rupees are in it?
  22. 22.If today is Tuesday, what day will it be after 40 days? (a) Wednesday (b) Sunday (c) Monday (d) Saturday
  23. 23.?274 is in the 9 times table. One digit is hidden, and it is not 0. What is the hidden digit?
  24. 24.What comes next? 2, 8, 14, 20, ? (a) 32 (b) 20 (c) 27 (d) 26
  25. 25.54 × 4 =
  26. 26.I thought of a number, multiplied it by 3 and added 5. I got 14. What was my number?
  27. 27.1 + 3 + 5 + … + 21 =
  28. 28.Do the 1089 trick with 258: reverse and subtract, then reverse that answer and add. What do you get?
  29. 29.What comes next? 12, 21, 30, 39, ? (a) 39 (b) 49 (c) 48 (d) 57
  30. 30.Take 108. Reverse its digits and take the smaller number away from the bigger one. What do you get?
  31. 31.31 × ? = 31000
  32. 32.690 × ? = 6900
  33. 33.2 × 100 =
  34. 34.3 × 9 =
  35. 35.20 × 4 =
  36. 36.Magic square (every row, column and diagonal has the same total): 3 10 5 | 8 6 4 | 7 ? 9. What is the missing number?
  37. 37.Magic trick! Think of 3. Double it, add 18, halve it, then take away 3. What number do you get?
  38. 38.9 × 3 = 2? — what is the missing digit?
  39. 39.9 × 6 = 5? — what is the missing digit?
  40. 40.111 × 111 =

Answer key

  1. 32
  2. 9300
  3. 4
  4. 198
  5. 90
  6. 26
  7. 45
  8. 64
  9. 9900
  10. 3
  11. 64
  12. Sunday
  13. 3950
  14. 6
  15. 70
  16. 1830
  17. 14
  18. Tuesday
  19. 2
  20. 31
  21. 25
  22. Sunday
  23. 5
  24. 26
  25. 216
  26. 3
  27. 121
  28. 1089
  29. 48
  30. 693
  31. 1000
  32. 10
  33. 200
  34. 27
  35. 80
  36. 2
  37. 9
  38. 7
  39. 4
  40. 12321

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