Maths Tricks Practice Worksheet

Maths tricks trick 15: Mixed trick challenge · Set 826 · 40 questions

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.

1. 1.You have 5 coins. Each coin is ₹1 or ₹2, and together they make ₹8. How many ₹2 coins do you have?
2. 2.Magic square (every row, column and diagonal has the same total): 11 ? 9 | 6 8 10 | 7 12 5. What is the missing number?
3. 3.9 × 4 = 3? — what is the missing digit?
4. 4.9 × 2 = ?8 — what is the missing digit?
5. 5.Magic square (every row, column and diagonal has the same total): 10 3 8 | 5 7 9 | ? 11 4. What is the missing number?
6. 6.9 × 3 = 2? — what is the missing digit?
7. 7.38 × 4 =
8. 8.Half of 182 =
9. 9.Magic square (every row, column and diagonal has the same total): ? 14 7 | 8 10 12 | 13 6 11. What is the missing number?
10. 10.What comes next? 4, 8, 16, 32, ? (a) 64 (b) 65 (c) 56 (d) 48
11. 11.Take 704. Reverse its digits and take the smaller number away from the bigger one. What do you get?
12. 12.A girl is 8 years old and her brother is 3 years older. How old will her brother be in 5 years?
13. 13.9 × 3 =
14. 14.Take 75 and take away the sum of its digits. What do you get?
15. 15.Magic trick! Think of 3. Double it, add 14, halve it, then take away 3. What number do you get?
16. 16.39 × 4 =
17. 17.Magic square (every row, column and diagonal has the same total): 19 9 11 | 5 13 ? | 15 17 7. What is the missing number?
18. 18.495 × ? = 4950
19. 19.Take 184. Reverse its digits and take the smaller number away from the bigger one. What do you get?
20. 20.Double 32 =
21. 21.Half of 104 =
22. 22.11 × 11 =
23. 23.Magic square (every row, column and diagonal has the same total): 12 33 18 | 27 21 15 | ? 9 30. What is the missing number?
24. 24.The 2nd of a month is a Sunday. What day is the 26th of the same month? (a) Tuesday (b) Thursday (c) Wednesday (d) Saturday
25. 25.1 + 3 + 5 + … + 29 =
26. 26.The 8th of a month is a Sunday. What day is the 18th of the same month? (a) Saturday (b) Wednesday (c) Thursday (d) Tuesday
27. 27.If today is Thursday, what day was it 49 days ago? (a) Friday (b) Wednesday (c) Sunday (d) Thursday
28. 28.9 × 5 =
29. 29.I thought of a number, added 8 and then doubled it. I got 28. What was my number?
30. 30.29 × 4 =
31. 31.15 × 4 =
32. 32.5 × 9 =
33. 33.9 × 4 =
34. 34.28 × ? = 2800
35. 35.Take 97 and take away the sum of its digits. What do you get?
36. 36.Double 83 =
37. 37.1 + 3 + 5 + … + 49 =
38. 38.48 × 1000 =
39. 39.Double 76 =
40. 40.1 + 3 + 5 + … + 43 =

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