Maths Tricks Practice Worksheet

Maths tricks trick 15: Mixed trick challenge · Set 438 · 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.?166 is in the 9 times table. One digit is hidden, and it is not 0. What is the hidden digit?
2. 2.1 + 2 + 3 + … + 73 =
3. 3.55 × 4 =
4. 4.284? is in the 9 times table. One digit is hidden, and it is not 0. What is the hidden digit?
5. 5.45 × 1000 =
6. 6.The ages of two twins add up to 24. How old is each twin?
7. 7.123456 × 8 + 6 =
8. 8.58 × 4 =
9. 9.Take 32 and take away the sum of its digits. What do you get?
10. 10.13 × 100 =
11. 11.41 × 4 =
12. 12.7 × 9 =
13. 13.9 × 3 = ?7 — what is the missing digit?
14. 14.9 × 8 =
15. 15.Magic square (every row, column and diagonal has the same total): 11 32 17 | 26 20 14 | 23 8 ?. What is the missing number?
16. 16.12345679 × 72 =
17. 17.In the 1089 trick, the subtraction gave a 3-digit number that starts with 3. What is that number?
18. 18.9 × 100 =
19. 19.Magic square (every row, column and diagonal has the same total): 15 13 23 | 25 ? 9 | 11 21 19. What is the missing number?
20. 20.Magic square (every row, column and diagonal has the same total): 9 2 7 | 4 6 ? | 5 10 3. What is the missing number?
21. 21.52 × 4 =
22. 22.What comes next? 4, 8, 16, 32, ? (a) 56 (b) 64 (c) 65 (d) 48
23. 23.Take 650. Reverse its digits and take the smaller number away from the bigger one. What do you get?
24. 24.9 × 6 = 5? — what is the missing digit?
25. 25.If today is Tuesday, what day will it be after 60 days? (a) Sunday (b) Saturday (c) Friday (d) Tuesday
26. 26.Take 66 and take away the sum of its digits. What do you get?
27. 27.827? is in the 9 times table. One digit is hidden, and it is not 0. What is the hidden digit?
28. 28.What comes next? 20, 28, 36, 44, ? (a) 53 (b) 52 (c) 60 (d) 44
29. 29.What comes next? 6, 13, 20, 27, ? (a) 35 (b) 41 (c) 27 (d) 34
30. 30.20 × 4 =
31. 31.37 × 9 =
32. 32.Take 580. Reverse its digits and take the smaller number away from the bigger one. What do you get?
33. 33.396 + 693 =
34. 34.7?21 is in the 9 times table. One digit is hidden, and it is not 0. What is the hidden digit?
35. 35.You have 15 coins. Each coin is ₹1 or ₹2, and together they make ₹19. How many ₹2 coins do you have?
36. 36.Double 31 =
37. 37.Take 360. Reverse its digits and take the smaller number away from the bigger one. What do you get?
38. 38.I thought of a number, multiplied it by 2 and added 8. I got 12. What was my number?
39. 39.123456 × 9 + 7 =
40. 40.Double 92 =

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