Maths Tricks Practice Worksheet

Maths tricks trick 15: Mixed trick challenge · Set 36 · 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 girl is 9 years old and her brother is 2 years older. How old will her brother be in 5 years?
2. 2.10 × 9 =
3. 3.A girl is 10 years old and her brother is 4 years older. How old will her brother be in 3 years?
4. 4.What comes next? 16, 25, 36, 49, ? (a) 65 (b) 62 (c) 66 (d) 64
5. 5.9 × 2 = 1? — what is the missing digit?
6. 6.9 × 9 =
7. 7.A girl is 5 years old and her brother is 5 years older. How old will her brother be in 7 years?
8. 8.In the 1089 trick, the subtraction gave a 3-digit number that starts with 2. What is that number?
9. 9.Take 63 and take away the sum of its digits. What do you get?
10. 10.In the 1089 trick, the subtraction gave a 3-digit number that starts with 5. What is that number?
11. 11.344 × 10 =
12. 12.Take 78 and take away the sum of its digits. What do you get?
13. 13.Take 94 and take away the sum of its digits. What do you get?
14. 14.Magic square (every row, column and diagonal has the same total): ? 17 12 | 15 13 11 | 14 9 16. What is the missing number?
15. 15.9 × 1000 =
16. 16.639? is in the 9 times table. One digit is hidden, and it is not 0. What is the hidden digit?
17. 17.What comes next? 25, 36, 49, 64, ? (a) 79 (b) 81 (c) 82 (d) 83
18. 18.8 × 1000 =
19. 19.123 × 9 + 4 =
20. 20.The ages of two twins add up to 10. How old is each twin?
21. 21.1 + 2 + 3 + … + 11 =
22. 22.Magic trick! Think of 20. Double it, add 14, halve it, then take away 20. What number do you get?
23. 23.9 × 10 = 9? — what is the missing digit?
24. 24.37 × 15 =
25. 25.1 + 2 + 3 + … + 98 =
26. 26.111 × 111 =
27. 27.9 × 10 =
28. 28.9 × 2 = ?8 — what is the missing digit?
29. 29.Odd one out: which number is NOT in the 3 times table? (a) 6 (b) 19 (c) 24 (d) 15
30. 30.19 × 4 =
31. 31.Magic square (every row, column and diagonal has the same total): 4 18 8 | 14 10 6 | 12 2 ?. What is the missing number?
32. 32.42 × 4 =
33. 33.Magic square (every row, column and diagonal has the same total): ? 20 6 | 8 12 16 | 18 4 14. What is the missing number?
34. 34.48 × ? = 48000
35. 35.9 × 5 = 4? — what is the missing digit?
36. 36.43 × 4 =
37. 37.Think of 2. Multiply it by 4, then add 6. What number do you end with?
38. 38.9 × 8 = 7? — what is the missing digit?
39. 39.A piggy bank has 7 coins of ₹5 and 5 coins of ₹2. How many rupees are in it?
40. 40.Magic square (every row, column and diagonal has the same total): ? 12 22 | 24 16 8 | 10 20 18. What is the missing number?

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