← Mixed trick challenge lesson New set →

Maths Tricks Practice Worksheet

Maths tricks trick 15: Mixed trick challenge · Set 612 · 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. 1.1111 × 1111 =
  2. 2.Take 90 and take away the sum of its digits. What do you get?
  3. 3.9 × 5 = ?5 — what is the missing digit?
  4. 4.Take 178. Reverse its digits and take the smaller number away from the bigger one. What do you get?
  5. 5.A girl is 11 years old and her brother is 3 years older. How old will her brother be in 6 years?
  6. 6.What comes next? 1, 4, 9, 16, ? (a) 27 (b) 23 (c) 25 (d) 26
  7. 7.Half of 118 =
  8. 8.32 × 4 =
  9. 9.1 + 3 + 5 + … + 33 =
  10. 10.10 × 4 =
  11. 11.6 × 9 =
  12. 12.1 + 3 + 5 + … + 23 =
  13. 13.I thought of a number, multiplied it by 4 and added 3. I got 55. What was my number?
  14. 14.7?9 is in the 9 times table. One digit is hidden, and it is not 0. What is the hidden digit?
  15. 15.Half of 42 =
  16. 16.Magic square (every row, column and diagonal has the same total): 19 22 7 | ? 16 28 | 25 10 13. What is the missing number?
  17. 17.9 × 5 = 4? — what is the missing digit?
  18. 18.1 + 3 + 5 + … + 35 =
  19. 19.801? is in the 9 times table. One digit is hidden, and it is not 0. What is the hidden digit?
  20. 20.9 × 8 = 7? — what is the missing digit?
  21. 21.If today is Thursday, what day will it be after 84 days? (a) Wednesday (b) Thursday (c) Friday (d) Sunday
  22. 22.29 × 4 =
  23. 23.Odd one out: which number is NOT in the 6 times table? (a) 38 (b) 30 (c) 48 (d) 24
  24. 24.Odd one out: which number is NOT in the 7 times table? (a) 14 (b) 35 (c) 57 (d) 28
  25. 25.4 × 9 =
  26. 26.Do the 1089 trick with 698: reverse and subtract, then reverse that answer and add. What do you get?
  27. 27.28 × 4 =
  28. 28.?305 is in the 9 times table. One digit is hidden, and it is not 0. What is the hidden digit?
  29. 29.If today is Friday, what day will it be after 63 days? (a) Thursday (b) Saturday (c) Friday (d) Monday
  30. 30.9 × 3 = ?7 — what is the missing digit?
  31. 31.A girl is 5 years old and her brother is 5 years older. How old will her brother be in 3 years?
  32. 32.The ages of two twins add up to 30. How old is each twin?
  33. 33.Double 34 =
  34. 34.1 + 2 + 3 + … + 18 =
  35. 35.12345 × 9 + 6 =
  36. 36.97? is in the 9 times table. One digit is hidden, and it is not 0. What is the hidden digit?
  37. 37.Magic square (every row, column and diagonal has the same total): 9 4 11 | 10 8 6 | 5 ? 7. What is the missing number?
  38. 38.1 + 3 + 5 + … + 15 =
  39. 39.11 × 11 =
  40. 40.If today is Tuesday, what day was it 59 days ago? (a) Saturday (b) Friday (c) Tuesday (d) Sunday

Answer key

  1. 1234321
  2. 81
  3. 4
  4. 693
  5. 20
  6. 25
  7. 59
  8. 128
  9. 289
  10. 40
  11. 54
  12. 144
  13. 13
  14. 2
  15. 21
  16. 4
  17. 5
  18. 324
  19. 9
  20. 2
  21. Thursday
  22. 116
  23. 38
  24. 57
  25. 36
  26. 1089
  27. 112
  28. 1
  29. Friday
  30. 2
  31. 13
  32. 15
  33. 68
  34. 171
  35. 111111
  36. 2
  37. 12
  38. 64
  39. 121
  40. Saturday

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