Maths Tricks Practice Worksheet

Maths tricks trick 15: Mixed trick challenge · Set 7 · 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.What comes next? 25, 36, 49, 64, ? (a) 83 (b) 81 (c) 79 (d) 82
2. 2.Half of 84 =
3. 3.Magic square (every row, column and diagonal has the same total): 22 12 14 | 8 ? 24 | 18 20 10. What is the missing number?
4. 4.Magic square (every row, column and diagonal has the same total): 20 35 14 | 17 23 29 | 32 11 ?. What is the missing number?
5. 5.Half of 176 =
6. 6.Half of 142 =
7. 7.9 × 4 = 3? — what is the missing digit?
8. 8.The 2nd of a month is a Wednesday. What day is the 30th of the same month? (a) Thursday (b) Tuesday (c) Saturday (d) Wednesday
9. 9.Double 69 =
10. 10.I thought of a number, added 6 and then doubled it. I got 18. What was my number?
11. 11.9 × 6 =
12. 12.If today is Saturday, what day was it 38 days ago? (a) Tuesday (b) Wednesday (c) Saturday (d) Thursday
13. 13.66 × ? = 660
14. 14.9 × 3 =
15. 15.What comes next? 4, 8, 16, 32, ? (a) 48 (b) 65 (c) 64 (d) 56
16. 16.9 × 6 = 5? — what is the missing digit?
17. 17.Double 37 =
18. 18.123 × 8 + 3 =
19. 19.1 × 9 =
20. 20.Magic square (every row, column and diagonal has the same total): 15 13 23 | 25 17 ? | 11 21 19. What is the missing number?
21. 21.292 × 10 =
22. 22.12345678 × 9 + 9 =
23. 23.7 × 9 =
24. 24.1 + 3 + 5 + … + 37 =
25. 25.1 + 2 + 3 + … + 10 =
26. 26.What comes next? 17, 25, 33, 41, ? (a) 49 (b) 41 (c) 50 (d) 57
27. 27.Magic square (every row, column and diagonal has the same total): 12 ? 20 | 26 18 10 | 16 14 24. What is the missing number?
28. 28.Take 11 and take away the sum of its digits. What do you get?
29. 29.Magic trick! Think of 18. Double it, add 10, halve it, then take away 18. What number do you get?
30. 30.Double 93 =
31. 31.15 × 1000 =
32. 32.Think of 3. Multiply it by 2, then add 7. What number do you end with?
33. 33.If today is Saturday, what day will it be after 82 days? (a) Sunday (b) Wednesday (c) Friday (d) Thursday
34. 34.Magic square (every row, column and diagonal has the same total): 11 16 ? | 10 12 14 | 15 8 13. What is the missing number?
35. 35.In the 1089 trick, the subtraction gave a 3-digit number that starts with 6. What is that number?
36. 36.7?10 is in the 9 times table. One digit is hidden, and it is not 0. What is the hidden digit?
37. 37.Magic trick! Think of 11. Double it, add 14, halve it, then take away 11. What number do you get?
38. 38.40 × 10 =
39. 39.1 + 2 + 3 + … + 79 =
40. 40.What comes next? 14, 16, 18, 20, ? (a) 24 (b) 20 (c) 22 (d) 23

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