Maths Tricks Practice Worksheet

Maths tricks trick 15: Mixed trick challenge · Set 853 · 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. 1.18 × 1000 =
2. 2.Double 99 =
3. 3.Half of 92 =
4. 4.40 × 4 =
5. 5.1 + 2 + 3 + … + 43 =
6. 6.What comes next? 2, 4, 8, 16, ? (a) 32 (b) 28 (c) 33 (d) 24
7. 7.Take 42 and take away the sum of its digits. What do you get?
8. 8.Do the 1089 trick with 290: reverse and subtract, then reverse that answer and add. What do you get?
9. 9.Take 95 and take away the sum of its digits. What do you get?
10. 10.12345679 × 45 =
11. 11.Magic square (every row, column and diagonal has the same total): 11 16 15 | 18 14 10 | 13 ? 17. What is the missing number?
12. 12.7 × 9 =
13. 13.1 + 3 + 5 + … + 45 =
14. 14.37 × 15 =
15. 15.1 + 2 + 3 + … + 52 =
16. 16.A girl is 8 years old and her brother is 4 years older. How old will her brother be in 6 years?
17. 17.Magic square (every row, column and diagonal has the same total): 11 18 13 | 16 14 12 | 15 10 ?. What is the missing number?
18. 18.42 × 4 =
19. 19.What comes next? 20, 27, 34, 41, ? (a) 55 (b) 49 (c) 48 (d) 41
20. 20.9 × 2 = ?8 — what is the missing digit?
21. 21.34?4 is in the 9 times table. One digit is hidden, and it is not 0. What is the hidden digit?
22. 22.If today is Saturday, what day was it 32 days ago? (a) Friday (b) Monday (c) Tuesday (d) Wednesday
23. 23.1 + 2 + 3 + … + 33 =
24. 24.15 × 4 =
25. 25.In 4 years a boy will be 13 years old. How old was he 2 years ago?
26. 26.123456789 × 8 + 9 =
27. 27.Do the 1089 trick with 541: reverse and subtract, then reverse that answer and add. What do you get?
28. 28.I thought of a number, added 6 and then doubled it. I got 24. What was my number?
29. 29.Magic trick! Think of 3. Double it, add 10, halve it, then take away 3. What number do you get?
30. 30.8 × 9 =
31. 31.1 × 9 =
32. 32.2 × 9 =
33. 33.407? is in the 9 times table. One digit is hidden, and it is not 0. What is the hidden digit?
34. 34.1 + 2 + 3 + … + 45 =
35. 35.Magic square (every row, column and diagonal has the same total): 21 18 33 | ? 24 12 | 15 30 27. What is the missing number?
36. 36.A father is 38 years old and his son is 7. How old was the father when the son was born?
37. 37.1234567 × 9 + 8 =
38. 38.A father is 43 years old and his son is 6. How old was the father when the son was born?
39. 39.10 × 9 =
40. 40.9 × 3 =

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