Maths Tricks Practice Worksheet

Maths tricks trick 15: Mixed trick challenge · Set 610 · 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. 1.1 + 2 + 3 + … + 87 =
2. 2.Half of 118 =
3. 3.1 + 3 + 5 + … + 39 =
4. 4.30? is in the 9 times table. One digit is hidden, and it is not 0. What is the hidden digit?
5. 5.I thought of a number, multiplied it by 3 and added 1. I got 10. What was my number?
6. 6.If today is Friday, what day will it be after 39 days? (a) Wednesday (b) Monday (c) Tuesday (d) Friday
7. 7.40 × 4 =
8. 8.The 9th of a month is a Wednesday. What day is the 20th of the same month? (a) Saturday (b) Sunday (c) Monday (d) Wednesday
9. 9.12345679 × 54 =
10. 10.9 × 9 = ?1 — what is the missing digit?
11. 11.891 + 198 =
12. 12.83 × 100 =
13. 13.?606 is in the 9 times table. One digit is hidden, and it is not 0. What is the hidden digit?
14. 14.261? is in the 9 times table. One digit is hidden, and it is not 0. What is the hidden digit?
15. 15.Magic square (every row, column and diagonal has the same total): 21 6 27 | 24 ? 12 | 9 30 15. What is the missing number?
16. 16.Magic square (every row, column and diagonal has the same total): 16 9 ? | 11 13 15 | 12 17 10. What is the missing number?
17. 17.1 + 3 + 5 + … + 47 =
18. 18.If today is Wednesday, what day will it be after 18 days? (a) Wednesday (b) Saturday (c) Sunday (d) Monday
19. 19.9 × 1 =
20. 20.Do the 1089 trick with 688: reverse and subtract, then reverse that answer and add. What do you get?
21. 21.2 × 9 =
22. 22.In the 1089 trick, the subtraction gave a 3-digit number that starts with 3. What is that number?
23. 23.What comes next? 20, 24, 28, 32, ? (a) 32 (b) 36 (c) 40 (d) 37
24. 24.123456 × 9 + 7 =
25. 25.Half of 82 =
26. 26.198 + 891 =
27. 27.If today is Friday, what day will it be after 71 days? (a) Tuesday (b) Sunday (c) Friday (d) Saturday
28. 28.9 × 5 = ?5 — what is the missing digit?
29. 29.9 × 8 =
30. 30.If today is Sunday, what day was it 60 days ago? (a) Wednesday (b) Thursday (c) Saturday (d) Tuesday
31. 31.36 × 4 =
32. 32.Magic square (every row, column and diagonal has the same total): 25 28 ? | 10 22 34 | 31 16 19. What is the missing number?
33. 33.Magic square (every row, column and diagonal has the same total): 14 15 10 | 9 ? 17 | 16 11 12. What is the missing number?
34. 34.9 × 8 = ?2 — what is the missing digit?
35. 35.11111 × 11111 =
36. 36.Magic square (every row, column and diagonal has the same total): ? 29 14 | 23 17 11 | 20 5 26. What is the missing number?
37. 37.You have 7 coins. Each coin is ₹1 or ₹2, and together they make ₹8. How many ₹2 coins do you have?
38. 38.Double 49 =
39. 39.12345679 × 72 =
40. 40.282 × 10 =

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