Maths Tricks Practice Worksheet

Maths tricks trick 15: Mixed trick challenge · Set 889 · 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.The 3rd of a month is a Sunday. What day is the 15th of the same month? (a) Friday (b) Monday (c) Thursday (d) Saturday
2. 2.If today is Saturday, what day will it be after 55 days? (a) Saturday (b) Friday (c) Monday (d) Thursday
3. 3.9 × 10 =
4. 4.35 × 4 =
5. 5.85 × ? = 8500
6. 6.9 × 1 =
7. 7.1 + 3 + 5 + … + 15 =
8. 8.Half of 146 =
9. 9.1 + 2 + 3 + … + 44 =
10. 10.What comes next? 4, 9, 16, 25, ? (a) 37 (b) 36 (c) 38 (d) 34
11. 11.792 + 297 =
12. 12.Half of 138 =
13. 13.12345679 × 18 =
14. 14.If today is Thursday, what day will it be after 14 days? (a) Sunday (b) Friday (c) Thursday (d) Wednesday
15. 15.37 × 21 =
16. 16.What comes next? 4, 9, 14, 19, ? (a) 19 (b) 25 (c) 29 (d) 24
17. 17.88?5 is in the 9 times table. One digit is hidden, and it is not 0. What is the hidden digit?
18. 18.65?2 is in the 9 times table. One digit is hidden, and it is not 0. What is the hidden digit?
19. 19.11 × 11 =
20. 20.Half of 26 =
21. 21.Double 49 =
22. 22.The 2nd of a month is a Wednesday. What day is the 20th of the same month? (a) Saturday (b) Monday (c) Wednesday (d) Sunday
23. 23.In 3 years a boy will be 16 years old. How old was he 7 years ago?
24. 24.You have 5 coins. Each coin is ₹1 or ₹2, and together they make ₹8. How many ₹2 coins do you have?
25. 25.If today is Thursday, what day was it 45 days ago? (a) Monday (b) Tuesday (c) Thursday (d) Sunday
26. 26.12 × 8 + 2 =
27. 27.Magic square (every row, column and diagonal has the same total): 6 11 4 | 5 ? 9 | 10 3 8. What is the missing number?
28. 28.Take 721. Reverse its digits and take the smaller number away from the bigger one. What do you get?
29. 29.5 × 9 =
30. 30.3?95 is in the 9 times table. One digit is hidden, and it is not 0. What is the hidden digit?
31. 31.1 + 3 + 5 + … + 19 =
32. 32.Double 25 =
33. 33.The 5th of a month is a Thursday. What day is the 28th of the same month? (a) Saturday (b) Friday (c) Sunday (d) Tuesday
34. 34.The 1st of a month is a Saturday. What day is the 12th of the same month? (a) Thursday (b) Wednesday (c) Tuesday (d) Saturday
35. 35.46 × ? = 4600
36. 36.Magic square (every row, column and diagonal has the same total): 14 9 ? | 7 11 15 | 12 13 8. What is the missing number?
37. 37.Double 89 =
38. 38.Take 270. Reverse its digits and take the smaller number away from the bigger one. What do you get?
39. 39.You have 14 coins. Each coin is ₹1 or ₹2, and together they make ₹25. How many ₹2 coins do you have?
40. 40.52 × 4 =

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