Maths Tricks Practice Worksheet

Maths tricks trick 15: Mixed trick challenge · Set 332 · 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. 1.661 × ? = 6610
2. 2.Magic square (every row, column and diagonal has the same total): 9 7 17 | 19 11 3 | 5 ? 13. What is the missing number?
3. 3.In 2 years a boy will be 16 years old. How old was he 3 years ago?
4. 4.1 + 3 + 5 + … + 47 =
5. 5.41 × 100 =
6. 6.I thought of a number, added 7 and then doubled it. I got 32. What was my number?
7. 7.40 × 4 =
8. 8.9 × 7 = ?3 — what is the missing digit?
9. 9.Do the 1089 trick with 510: reverse and subtract, then reverse that answer and add. What do you get?
10. 10.A piggy bank has 3 coins of ₹5 and 2 coins of ₹2. How many rupees are in it?
11. 11.859? is in the 9 times table. One digit is hidden, and it is not 0. What is the hidden digit?
12. 12.1 + 2 + 3 + … + 21 =
13. 13.9 × 5 = ?5 — what is the missing digit?
14. 14.What comes next? 4, 9, 16, 25, ? (a) 38 (b) 37 (c) 36 (d) 34
15. 15.If today is Monday, what day was it 11 days ago? (a) Thursday (b) Wednesday (c) Sunday (d) Friday
16. 16.Magic square (every row, column and diagonal has the same total): 28 13 16 | ? 19 31 | 22 25 10. What is the missing number?
17. 17.Magic square (every row, column and diagonal has the same total): 12 2 16 | 14 10 6 | 4 18 ?. What is the missing number?
18. 18.7 × 4 =
19. 19.Magic square (every row, column and diagonal has the same total): 26 11 14 | ? 17 29 | 20 23 8. What is the missing number?
20. 20.1 + 2 + 3 + … + 62 =
21. 21.48 × 4 =
22. 22.12345679 × 27 =
23. 23.Magic square (every row, column and diagonal has the same total): 16 2 12 | 6 ? 14 | 8 18 4. What is the missing number?
24. 24.12345679 × 63 =
25. 25.You have 15 coins. Each coin is ₹1 or ₹2, and together they make ₹25. How many ₹2 coins do you have?
26. 26.9 × 9 = ?1 — what is the missing digit?
27. 27.Magic square (every row, column and diagonal has the same total): ? 20 10 | 8 16 24 | 22 12 14. What is the missing number?
28. 28.197 × 10 =
29. 29.Magic square (every row, column and diagonal has the same total): 18 20 10 | 8 16 24 | 22 ? 14. What is the missing number?
30. 30.50 × 4 =
31. 31.Take 98 and take away the sum of its digits. What do you get?
32. 32.9 × 2 = ?8 — what is the missing digit?
33. 33.45 × 4 =
34. 34.9 × 6 =
35. 35.Do the 1089 trick with 401: reverse and subtract, then reverse that answer and add. What do you get?
36. 36.Magic square (every row, column and diagonal has the same total): ? 28 25 | 34 22 10 | 19 16 31. What is the missing number?
37. 37.72 × ? = 7200
38. 38.26 × 4 =
39. 39.1 + 3 + 5 + … + 37 =
40. 40.Take 178. Reverse its digits and take the smaller number away from the bigger one. What do you get?

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