Maths Tricks Practice Worksheet

Maths tricks trick 15: Mixed trick challenge · Set 306 · 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. 1.1 + 3 + 5 + … + 19 =
2. 2.In the 1089 trick, the subtraction gave a 3-digit number that starts with 5. What is that number?
3. 3.Take 31 and take away the sum of its digits. What do you get?
4. 4.Magic trick! Think of 17. Double it, add 14, halve it, then take away 17. What number do you get?
5. 5.9 × 2 = ?8 — what is the missing digit?
6. 6.What comes next? 18, 25, 32, 39, ? (a) 53 (b) 47 (c) 39 (d) 46
7. 7.What comes next? 20, 24, 28, 32, ? (a) 36 (b) 32 (c) 37 (d) 40
8. 8.8 × 1000 =
9. 9.?874 is in the 9 times table. One digit is hidden, and it is not 0. What is the hidden digit?
10. 10.Take 43 and take away the sum of its digits. What do you get?
11. 11.Take 164. Reverse its digits and take the smaller number away from the bigger one. What do you get?
12. 12.1 + 3 + 5 + … + 17 =
13. 13.You have 6 coins. Each coin is ₹1 or ₹2, and together they make ₹11. How many ₹2 coins do you have?
14. 14.1?34 is in the 9 times table. One digit is hidden, and it is not 0. What is the hidden digit?
15. 15.Magic trick! Think of 18. Double it, add 12, halve it, then take away 18. What number do you get?
16. 16.I thought of a number, added 9 and then doubled it. I got 24. What was my number?
17. 17.Double 76 =
18. 18.If today is Tuesday, what day was it 42 days ago? (a) Monday (b) Tuesday (c) Wednesday (d) Friday
19. 19.A father is 40 years old and his son is 14. How old was the father when the son was born?
20. 20.A girl is 6 years old and her brother is 5 years older. How old will her brother be in 7 years?
21. 21.89 × 100 =
22. 22.Double 25 =
23. 23.10 × 9 =
24. 24.Odd one out: which number is NOT in the 6 times table? (a) 18 (b) 12 (c) 30 (d) 37
25. 25.?170 is in the 9 times table. One digit is hidden, and it is not 0. What is the hidden digit?
26. 26.11 × 4 =
27. 27.37 × 27 =
28. 28.Think of 9. Multiply it by 2, then add 6. What number do you end with?
29. 29.If today is Saturday, what day will it be after 28 days? (a) Sunday (b) Saturday (c) Friday (d) Tuesday
30. 30.2 × 9 =
31. 31.37 × 1000 =
32. 32.Half of 122 =
33. 33.Double 35 =
34. 34.Take 508. Reverse its digits and take the smaller number away from the bigger one. What do you get?
35. 35.9 × 8 = ?2 — what is the missing digit?
36. 36.Half of 72 =
37. 37.40? is in the 9 times table. One digit is hidden, and it is not 0. What is the hidden digit?
38. 38.12345679 × 18 =
39. 39.6?54 is in the 9 times table. One digit is hidden, and it is not 0. What is the hidden digit?
40. 40.The 3rd of a month is a Monday. What day is the 17th of the same month? (a) Monday (b) Sunday (c) Thursday (d) Tuesday

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