Maths Tricks Practice Worksheet

Maths tricks trick 15: Mixed trick challenge · Set 947 · 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. 1.61 × 100 =
2. 2.Double 67 =
3. 3.Half of 184 =
4. 4.52 × 4 =
5. 5.11 × 4 =
6. 6.Take 791. Reverse its digits and take the smaller number away from the bigger one. What do you get?
7. 7.17 × 4 =
8. 8.Odd one out: which number is NOT in the 9 times table? (a) 36 (b) 63 (c) 56 (d) 45
9. 9.What comes next? 5, 10, 20, 40, ? (a) 81 (b) 60 (c) 70 (d) 80
10. 10.6 × 9 =
11. 11.9 × 10 = ?0 — what is the missing digit?
12. 12.1234567 × 8 + 7 =
13. 13.9 × 5 = 4? — what is the missing digit?
14. 14.Take 89 and take away the sum of its digits. What do you get?
15. 15.46 × 100 =
16. 16.51 × 4 =
17. 17.Magic square (every row, column and diagonal has the same total): ? 3 13 | 7 11 15 | 9 19 5. What is the missing number?
18. 18.Take 20 and take away the sum of its digits. What do you get?
19. 19.If today is Sunday, what day was it 26 days ago? (a) Friday (b) Monday (c) Wednesday (d) Tuesday
20. 20.Take 629. Reverse its digits and take the smaller number away from the bigger one. What do you get?
21. 21.19 × 10 =
22. 22.Think of 10. Multiply it by 4, then add 2. What number do you end with?
23. 23.9 × 5 = ?5 — what is the missing digit?
24. 24.Think of 12. Multiply it by 5, then add 3. What number do you end with?
25. 25.7 × 9 =
26. 26.Magic square (every row, column and diagonal has the same total): 7 28 13 | 22 16 10 | ? 4 25. What is the missing number?
27. 27.Odd one out: which number is NOT in the 3 times table? (a) 12 (b) 15 (c) 26 (d) 21
28. 28.Magic trick! Think of 12. Double it, add 16, halve it, then take away 12. What number do you get?
29. 29.1 + 2 + 3 + … + 7 =
30. 30.9 × 3 = 2? — what is the missing digit?
31. 31.Think of 3. Multiply it by 5, then add 9. What number do you end with?
32. 32.12345679 × 9 =
33. 33.74 × 100 =
34. 34.What comes next? 3, 10, 17, 24, ? (a) 38 (b) 32 (c) 24 (d) 31
35. 35.8 × 9 =
36. 36.The 6th of a month is a Thursday. What day is the 15th of the same month? (a) Sunday (b) Tuesday (c) Saturday (d) Friday
37. 37.What comes next? 1, 4, 9, 16, ? (a) 26 (b) 27 (c) 25 (d) 23
38. 38.81?6 is in the 9 times table. One digit is hidden, and it is not 0. What is the hidden digit?
39. 39.What comes next? 9, 16, 25, 36, ? (a) 49 (b) 50 (c) 51 (d) 47
40. 40.Do the 1089 trick with 311: reverse and subtract, then reverse that answer and add. What do you get?

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