Maths Tricks Practice Worksheet

Maths tricks trick 15: Mixed trick challenge · Set 841 · 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. 1.3 × 9 =
2. 2.39 × 4 =
3. 3.625 × ? = 6250
4. 4.12345679 × 9 =
5. 5.Do the 1089 trick with 476: reverse and subtract, then reverse that answer and add. What do you get?
6. 6.The 9th of a month is a Sunday. What day is the 24th of the same month? (a) Monday (b) Sunday (c) Thursday (d) Tuesday
7. 7.9?0 is in the 9 times table. One digit is hidden, and it is not 0. What is the hidden digit?
8. 8.?287 is in the 9 times table. One digit is hidden, and it is not 0. What is the hidden digit?
9. 9.7 × 4 =
10. 10.8 × 4 =
11. 11.54 × 4 =
12. 12.Double 32 =
13. 13.I thought of a number, multiplied it by 4 and added 8. I got 68. What was my number?
14. 14.2 × 9 =
15. 15.367 × ? = 3670
16. 16.41 × 100 =
17. 17.6 × 4 =
18. 18.Magic trick! Think of 7. Double it, add 4, halve it, then take away 7. What number do you get?
19. 19.What comes next? 4, 8, 16, 32, ? (a) 48 (b) 56 (c) 64 (d) 65
20. 20.Odd one out: which number is NOT in the 6 times table? (a) 30 (b) 42 (c) 37 (d) 18
21. 21.You have 8 coins. Each coin is ₹1 or ₹2, and together they make ₹13. How many ₹2 coins do you have?
22. 22.If today is Saturday, what day will it be after 73 days? (a) Friday (b) Wednesday (c) Monday (d) Tuesday
23. 23.37 × 18 =
24. 24.9 × 8 = 7? — what is the missing digit?
25. 25.9 × 4 = 3? — what is the missing digit?
26. 26.What comes next? 6, 15, 24, 33, ? (a) 42 (b) 33 (c) 43 (d) 51
27. 27.?305 is in the 9 times table. One digit is hidden, and it is not 0. What is the hidden digit?
28. 28.Double 31 =
29. 29.A piggy bank has 6 coins of ₹5 and 13 coins of ₹2. How many rupees are in it?
30. 30.What comes next? 3, 6, 12, 24, ? (a) 36 (b) 42 (c) 48 (d) 49
31. 31.Take 890. Reverse its digits and take the smaller number away from the bigger one. What do you get?
32. 32.In the 1089 trick, the subtraction gave a 3-digit number that starts with 3. What is that number?
33. 33.A piggy bank has 12 coins of ₹5 and 4 coins of ₹2. How many rupees are in it?
34. 34.Magic trick! Think of 14. Double it, add 8, halve it, then take away 14. What number do you get?
35. 35.Take 249. Reverse its digits and take the smaller number away from the bigger one. What do you get?
36. 36.Take 99 and take away the sum of its digits. What do you get?
37. 37.9 × 8 = ?2 — what is the missing digit?
38. 38.1 + 2 + 3 + … + 98 =
39. 39.1 + 3 + 5 + … + 37 =
40. 40.Magic trick! Think of 3. Double it, add 4, halve it, then take away 3. What number do you get?

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