Maths Tricks Practice Worksheet

Maths tricks trick 15: Mixed trick challenge · Set 40 · 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.A father is 31 years old and his son is 9. How old was the father when the son was born?
2. 2.9 × 9 =
3. 3.6?73 is in the 9 times table. One digit is hidden, and it is not 0. What is the hidden digit?
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. 5.7 × ? = 7000
6. 6.59 × 4 =
7. 7.123456 × 9 + 7 =
8. 8.Take 13 and take away the sum of its digits. What do you get?
9. 9.9 × 10 =
10. 10.In 4 years a boy will be 15 years old. How old was he 5 years ago?
11. 11.6 × 9 =
12. 12.17 × 4 =
13. 13.Take 146. Reverse its digits and take the smaller number away from the bigger one. What do you get?
14. 14.Magic square (every row, column and diagonal has the same total): 5 10 3 | 4 ? 8 | 9 2 7. What is the missing number?
15. 15.9 × 10 = 9? — what is the missing digit?
16. 16.52 × 4 =
17. 17.1 + 2 + 3 + … + 6 =
18. 18.A girl is 7 years old and her brother is 4 years older. How old will her brother be in 8 years?
19. 19.12345679 × 45 =
20. 20.Take 380. Reverse its digits and take the smaller number away from the bigger one. What do you get?
21. 21.If today is Monday, what day will it be after 26 days? (a) Sunday (b) Friday (c) Tuesday (d) Saturday
22. 22.297 + 792 =
23. 23.Magic square (every row, column and diagonal has the same total): 8 3 10 | 9 7 ? | 4 11 6. What is the missing number?
24. 24.111 × 111 =
25. 25.9 × 4 = 3? — what is the missing digit?
26. 26.315 × 10 =
27. 27.314? is in the 9 times table. One digit is hidden, and it is not 0. What is the hidden digit?
28. 28.The ages of two twins add up to 26. How old is each twin?
29. 29.1 + 3 + 5 + … + 45 =
30. 30.What comes next? 5, 7, 9, 11, ? (a) 14 (b) 15 (c) 11 (d) 13
31. 31.9 × 9 = ?1 — what is the missing digit?
32. 32.60 × 4 =
33. 33.37 × 3 =
34. 34.Take 81 and take away the sum of its digits. What do you get?
35. 35.What comes next? 2, 4, 8, 16, ? (a) 28 (b) 32 (c) 24 (d) 33
36. 36.9 × 9 = 8? — what is the missing digit?
37. 37.Magic square (every row, column and diagonal has the same total): ? 26 12 | 14 18 22 | 24 10 20. What is the missing number?
38. 38.Take 986. Reverse its digits and take the smaller number away from the bigger one. What do you get?
39. 39.228 × 10 =
40. 40.Double 98 =

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