Maths Tricks Practice Worksheet

Maths tricks trick 15: Mixed trick challenge · Set 292 · 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.Do the 1089 trick with 850: reverse and subtract, then reverse that answer and add. What do you get?
2. 2.9 × 6 = 5? — what is the missing digit?
3. 3.9 × 2 = 1? — what is the missing digit?
4. 4.In the 1089 trick, the subtraction gave a 3-digit number that starts with 7. What is that number?
5. 5.21 × 4 =
6. 6.What comes next? 9, 11, 13, 15, ? (a) 17 (b) 19 (c) 18 (d) 15
7. 7.Take 197. Reverse its digits and take the smaller number away from the bigger one. What do you get?
8. 8.12345 × 9 + 6 =
9. 9.Magic square (every row, column and diagonal has the same total): 8 13 6 | 7 9 11 | 12 5 ?. What is the missing number?
10. 10.9 × 5 = 4? — what is the missing digit?
11. 11.Magic square (every row, column and diagonal has the same total): 12 ? 4 | 2 10 18 | 16 6 8. What is the missing number?
12. 12.4 × 9 =
13. 13.Double 12 =
14. 14.8 × 9 =
15. 15.A father is 33 years old and his son is 6. How old was the father when the son was born?
16. 16.28 × 4 =
17. 17.58 × 4 =
18. 18.594 + 495 =
19. 19.Magic square (every row, column and diagonal has the same total): 30 15 18 | 9 21 33 | ? 27 12. What is the missing number?
20. 20.3 × 9 =
21. 21.891 + 198 =
22. 22.10 × 9 =
23. 23.I thought of a number, added 6 and then doubled it. I got 24. What was my number?
24. 24.9 × 5 = ?5 — what is the missing digit?
25. 25.41 × 4 =
26. 26.9 × 3 =
27. 27.9 × 2 =
28. 28.What comes next? 20, 25, 30, 35, ? (a) 40 (b) 35 (c) 41 (d) 45
29. 29.Magic square (every row, column and diagonal has the same total): 8 15 10 | 13 11 9 | ? 7 14. What is the missing number?
30. 30.Half of 104 =
31. 31.Half of 64 =
32. 32.9 × 7 =
33. 33.Magic square (every row, column and diagonal has the same total): 10 20 18 | ? 16 8 | 14 12 22. What is the missing number?
34. 34.9 × 7 = 6? — what is the missing digit?
35. 35.I thought of a number, multiplied it by 5 and added 2. I got 77. What was my number?
36. 36.Take 749. Reverse its digits and take the smaller number away from the bigger one. What do you get?
37. 37.What comes next? 6, 12, 18, 24, ? (a) 30 (b) 24 (c) 36 (d) 31
38. 38.Think of 5. Multiply it by 4, then add 2. What number do you end with?
39. 39.37 × 21 =
40. 40.Think of 14. Multiply it by 4, then add 3. What number do you end with?

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