← Mixed trick challenge lesson New set →

Maths Tricks Practice Worksheet

Maths tricks trick 15: Mixed trick challenge · Set 294 · 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. 1.12 × 4 =
  2. 2.4 × 9 =
  3. 3.What comes next? 3, 6, 12, 24, ? (a) 36 (b) 48 (c) 49 (d) 42
  4. 4.Magic square (every row, column and diagonal has the same total): 20 22 ? | 10 18 26 | 24 14 16. What is the missing number?
  5. 5.Magic square (every row, column and diagonal has the same total): 23 9 19 | 13 17 ? | 15 25 11. What is the missing number?
  6. 6.In the 1089 trick, the subtraction gave a 3-digit number that starts with 1. What is that number?
  7. 7.I thought of a number, added 7 and then doubled it. I got 44. What was my number?
  8. 8.Double 21 =
  9. 9.36 × 4 =
  10. 10.What comes next? 11, 15, 19, 23, ? (a) 31 (b) 27 (c) 28 (d) 23
  11. 11.9 × 3 = ?7 — what is the missing digit?
  12. 12.What comes next? 1, 2, 4, 8, ? (a) 17 (b) 16 (c) 12 (d) 14
  13. 13.1234567 × 8 + 7 =
  14. 14.The 5th of a month is a Friday. What day is the 13th of the same month? (a) Saturday (b) Friday (c) Sunday (d) Tuesday
  15. 15.60?2 is in the 9 times table. One digit is hidden, and it is not 0. What is the hidden digit?
  16. 16.1 + 2 + 3 + … + 94 =
  17. 17.1234 × 9 + 5 =
  18. 18.9 × 7 = 6? — what is the missing digit?
  19. 19.A girl is 10 years old and her brother is 6 years older. How old will her brother be in 3 years?
  20. 20.5 × 9 =
  21. 21.Think of 13. Multiply it by 2, then add 5. What number do you end with?
  22. 22.2 × 9 =
  23. 23.The ages of two twins add up to 8. How old is each twin?
  24. 24.In the 1089 trick, the subtraction gave a 3-digit number that starts with 6. What is that number?
  25. 25.Magic square (every row, column and diagonal has the same total): 15 8 13 | ? 12 14 | 11 16 9. What is the missing number?
  26. 26.7 × 9 =
  27. 27.Take 961. Reverse its digits and take the smaller number away from the bigger one. What do you get?
  28. 28.Magic trick! Think of 4. Double it, add 12, halve it, then take away 4. What number do you get?
  29. 29.35 × 4 =
  30. 30.36 × ? = 36000
  31. 31.Half of 118 =
  32. 32.Magic square (every row, column and diagonal has the same total): ? 17 32 | 35 23 11 | 14 29 26. What is the missing number?
  33. 33.9 × 2 =
  34. 34.9 × 10 =
  35. 35.792 + 297 =
  36. 36.37 × 3 =
  37. 37.57?7 is in the 9 times table. One digit is hidden, and it is not 0. What is the hidden digit?
  38. 38.Magic square (every row, column and diagonal has the same total): 4 11 6 | 9 7 5 | 8 ? 10. What is the missing number?
  39. 39.Odd one out: which number is NOT in the 4 times table? (a) 16 (b) 24 (c) 10 (d) 32
  40. 40.374 × 10 =

Answer key

  1. 48
  2. 36
  3. 48
  4. 12
  5. 21
  6. 198
  7. 15
  8. 42
  9. 144
  10. 27
  11. 2
  12. 16
  13. 9876543
  14. Saturday
  15. 1
  16. 4465
  17. 11111
  18. 3
  19. 19
  20. 45
  21. 31
  22. 18
  23. 4
  24. 693
  25. 10
  26. 63
  27. 792
  28. 6
  29. 140
  30. 1000
  31. 59
  32. 20
  33. 18
  34. 90
  35. 1089
  36. 111
  37. 8
  38. 3
  39. 10
  40. 3740

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