← Mixed trick challenge lesson New set →

Maths Tricks Practice Worksheet

Maths tricks trick 15: Mixed trick challenge · Set 733 · 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. 1.12345679 × 18 =
  2. 2.Magic square (every row, column and diagonal has the same total): ? 12 7 | 10 8 6 | 9 4 11. What is the missing number?
  3. 3.Think of 2. Multiply it by 2, then add 2. What number do you end with?
  4. 4.9 × 5 = 4? — what is the missing digit?
  5. 5.735 × ? = 7350
  6. 6.If today is Tuesday, what day will it be after 26 days? (a) Wednesday (b) Saturday (c) Monday (d) Sunday
  7. 7.Odd one out: which number is NOT in the 4 times table? (a) 16 (b) 25 (c) 8 (d) 12
  8. 8.?69 is in the 9 times table. One digit is hidden, and it is not 0. What is the hidden digit?
  9. 9.Double 44 =
  10. 10.Double 75 =
  11. 11.53 × 4 =
  12. 12.A father is 38 years old and his son is 12. How old was the father when the son was born?
  13. 13.Take 510. Reverse its digits and take the smaller number away from the bigger one. What do you get?
  14. 14.12 × 9 + 3 =
  15. 15.I thought of a number, multiplied it by 3 and added 8. I got 17. What was my number?
  16. 16.965 × 10 =
  17. 17.Half of 174 =
  18. 18.?303 is in the 9 times table. One digit is hidden, and it is not 0. What is the hidden digit?
  19. 19.Double 73 =
  20. 20.What comes next? 3, 10, 17, 24, ? (a) 31 (b) 32 (c) 24 (d) 38
  21. 21.A father is 33 years old and his son is 8. How old was the father when the son was born?
  22. 22.What comes next? 3, 6, 12, 24, ? (a) 48 (b) 42 (c) 49 (d) 36
  23. 23.A girl is 10 years old and her brother is 3 years older. How old will her brother be in 2 years?
  24. 24.3 × 9 =
  25. 25.8 × 4 =
  26. 26.12 × 8 + 2 =
  27. 27.37 × 27 =
  28. 28.123456789 × 8 + 9 =
  29. 29.?232 is in the 9 times table. One digit is hidden, and it is not 0. What is the hidden digit?
  30. 30.Double 91 =
  31. 31.2 × 9 =
  32. 32.I thought of a number, added 3 and then doubled it. I got 28. What was my number?
  33. 33.9 × 8 = 7? — what is the missing digit?
  34. 34.?57 is in the 9 times table. One digit is hidden, and it is not 0. What is the hidden digit?
  35. 35.5 × 9 =
  36. 36.Magic square (every row, column and diagonal has the same total): 21 11 ? | 7 15 23 | 17 19 9. What is the missing number?
  37. 37.Take 910. Reverse its digits and take the smaller number away from the bigger one. What do you get?
  38. 38.What comes next? 18, 22, 26, 30, ? (a) 35 (b) 38 (c) 30 (d) 34
  39. 39.42 × ? = 42000
  40. 40.63 × ? = 6300

Answer key

  1. 222222222
  2. 5
  3. 6
  4. 5
  5. 10
  6. Sunday
  7. 25
  8. 3
  9. 88
  10. 150
  11. 212
  12. 26
  13. 495
  14. 111
  15. 3
  16. 9650
  17. 87
  18. 3
  19. 146
  20. 31
  21. 25
  22. 48
  23. 15
  24. 27
  25. 32
  26. 98
  27. 999
  28. 987654321
  29. 2
  30. 182
  31. 18
  32. 11
  33. 2
  34. 6
  35. 45
  36. 13
  37. 891
  38. 34
  39. 1000
  40. 100

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