Maths Tricks Practice Worksheet

Maths tricks trick 15: Mixed trick challenge · Set 301 · 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. 1.16 × 4 =
2. 2.Do the 1089 trick with 892: reverse and subtract, then reverse that answer and add. What do you get?
3. 3.I thought of a number, added 7 and then doubled it. I got 54. What was my number?
4. 4.123 × ? = 1230
5. 5.1 + 3 + 5 + … + 9 =
6. 6.834 × ? = 8340
7. 7.9 × 5 =
8. 8.Think of 7. Multiply it by 5, then add 3. What number do you end with?
9. 9.1 + 3 + 5 + … + 45 =
10. 10.In the 1089 trick, the subtraction gave a 3-digit number that starts with 1. What is that number?
11. 11.558 × ? = 5580
12. 12.If today is Monday, what day will it be after 12 days? (a) Saturday (b) Tuesday (c) Friday (d) Sunday
13. 13.Double 44 =
14. 14.What comes next? 36, 49, 64, 81, ? (a) 102 (b) 101 (c) 100 (d) 98
15. 15.20 × 4 =
16. 16.The 3rd of a month is a Tuesday. What day is the 16th of the same month? (a) Thursday (b) Tuesday (c) Monday (d) Sunday
17. 17.1 + 2 + 3 + … + 59 =
18. 18.9 × 7 = 6? — what is the missing digit?
19. 19.What comes next? 4, 8, 16, 32, ? (a) 64 (b) 65 (c) 56 (d) 48
20. 20.Half of 168 =
21. 21.12345679 × 45 =
22. 22.29 × 10 =
23. 23.A girl is 6 years old and her brother is 3 years older. How old will her brother be in 4 years?
24. 24.I thought of a number, added 9 and then doubled it. I got 46. What was my number?
25. 25.Magic trick! Think of 12. Double it, add 8, halve it, then take away 12. What number do you get?
26. 26.Take 114. Reverse its digits and take the smaller number away from the bigger one. What do you get?
27. 27.Take 452. Reverse its digits and take the smaller number away from the bigger one. What do you get?
28. 28.1 + 2 + 3 + … + 45 =
29. 29.Double 76 =
30. 30.Do the 1089 trick with 244: reverse and subtract, then reverse that answer and add. What do you get?
31. 31.1 + 3 + 5 + … + 43 =
32. 32.693 + 396 =
33. 33.If today is Saturday, what day will it be after 62 days? (a) Thursday (b) Friday (c) Monday (d) Saturday
34. 34.100 × 10 =
35. 35.Magic square (every row, column and diagonal has the same total): 20 23 8 | ? 17 29 | 26 11 14. What is the missing number?
36. 36.9 × 9 =
37. 37.9 × 2 = 1? — what is the missing digit?
38. 38.Magic square (every row, column and diagonal has the same total): 18 21 6 | 3 15 27 | 24 9 ?. What is the missing number?
39. 39.2 × 9 =
40. 40.Magic square (every row, column and diagonal has the same total): 14 ? 20 | 29 23 17 | 26 11 32. What is the missing number?

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