← Mixed trick challenge lesson New set →

Maths Tricks Practice Worksheet

Maths tricks trick 15: Mixed trick challenge · Set 578 · 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. 1.992 × 10 =
  2. 2.21 × 4 =
  3. 3.Magic square (every row, column and diagonal has the same total): 12 14 4 | 2 10 18 | 16 6 ?. What is the missing number?
  4. 4.10 × 9 =
  5. 5.9 × 4 = ?6 — what is the missing digit?
  6. 6.45 × 4 =
  7. 7.4 × 9 =
  8. 8.9 × 8 = ?2 — what is the missing digit?
  9. 9.61 × ? = 6100
  10. 10.16 × 100 =
  11. 11.9 × 3 = ?7 — what is the missing digit?
  12. 12.1 + 2 + 3 + … + 6 =
  13. 13.30 × ? = 30000
  14. 14.37 × 9 =
  15. 15.You have 15 coins. Each coin is ₹1 or ₹2, and together they make ₹28. How many ₹2 coins do you have?
  16. 16.34 × 4 =
  17. 17.1 + 2 + 3 + … + 48 =
  18. 18.43 × 4 =
  19. 19.9 × 4 = 3? — what is the missing digit?
  20. 20.9 × 2 =
  21. 21.52 × 100 =
  22. 22.18 × ? = 1800
  23. 23.Take 169. Reverse its digits and take the smaller number away from the bigger one. What do you get?
  24. 24.40 × 4 =
  25. 25.Magic square (every row, column and diagonal has the same total): 11 32 17 | 26 ? 14 | 23 8 29. What is the missing number?
  26. 26.272? is in the 9 times table. One digit is hidden, and it is not 0. What is the hidden digit?
  27. 27.12345679 × 27 =
  28. 28.9 × 5 = ?5 — what is the missing digit?
  29. 29.What comes next? 12, 18, 24, 30, ? (a) 30 (b) 36 (c) 37 (d) 42
  30. 30.If today is Sunday, what day was it 23 days ago? (a) Friday (b) Saturday (c) Monday (d) Thursday
  31. 31.If today is Friday, what day was it 34 days ago? (a) Friday (b) Saturday (c) Sunday (d) Tuesday
  32. 32.891 + 198 =
  33. 33.Magic square (every row, column and diagonal has the same total): 13 10 25 | 28 16 ? | 7 22 19. What is the missing number?
  34. 34.Take 19 and take away the sum of its digits. What do you get?
  35. 35.What comes next? 36, 49, 64, 81, ? (a) 98 (b) 100 (c) 102 (d) 101
  36. 36.A piggy bank has 3 coins of ₹5 and 6 coins of ₹2. How many rupees are in it?
  37. 37.Half of 106 =
  38. 38.The 5th of a month is a Sunday. What day is the 27th of the same month? (a) Thursday (b) Tuesday (c) Monday (d) Sunday
  39. 39.26 × 100 =
  40. 40.Double 41 =

Answer key

  1. 9920
  2. 84
  3. 8
  4. 90
  5. 3
  6. 180
  7. 36
  8. 7
  9. 100
  10. 1600
  11. 2
  12. 21
  13. 1000
  14. 333
  15. 13
  16. 136
  17. 1176
  18. 172
  19. 6
  20. 18
  21. 5200
  22. 100
  23. 792
  24. 160
  25. 20
  26. 7
  27. 333333333
  28. 4
  29. 36
  30. Friday
  31. Saturday
  32. 1089
  33. 4
  34. 9
  35. 100
  36. 27
  37. 53
  38. Monday
  39. 2600
  40. 82

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