Maths Tricks Practice Worksheet

Maths tricks trick 15: Mixed trick challenge · Set 651 · 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.?505 is in the 9 times table. One digit is hidden, and it is not 0. What is the hidden digit?
2. 2.9 × 6 = ?4 — what is the missing digit?
3. 3.9 × 3 =
4. 4.I thought of a number, multiplied it by 4 and added 8. I got 64. What was my number?
5. 5.89?1 is in the 9 times table. One digit is hidden, and it is not 0. What is the hidden digit?
6. 6.518? is in the 9 times table. One digit is hidden, and it is not 0. What is the hidden digit?
7. 7.12345679 × 36 =
8. 8.Magic square (every row, column and diagonal has the same total): ? 9 10 | 7 11 15 | 12 13 8. What is the missing number?
9. 9.37 × 3 =
10. 10.7 × 4 =
11. 11.What comes next? 2, 10, 18, 26, ? (a) 42 (b) 34 (c) 35 (d) 26
12. 12.Double 24 =
13. 13.What comes next? 16, 25, 36, 49, ? (a) 65 (b) 62 (c) 66 (d) 64
14. 14.15 × 1000 =
15. 15.55 × 4 =
16. 16.1 + 2 + 3 + … + 84 =
17. 17.Magic square (every row, column and diagonal has the same total): 7 12 11 | 14 10 6 | 9 ? 13. What is the missing number?
18. 18.9 × 6 =
19. 19.9 × 9 =
20. 20.The 7th of a month is a Friday. What day is the 22nd of the same month? (a) Friday (b) Tuesday (c) Saturday (d) Sunday
21. 21.3 × 100 =
22. 22.123456 × 8 + 6 =
23. 23.The ages of two twins add up to 8. How old is each twin?
24. 24.356 × ? = 3560
25. 25.198 + 891 =
26. 26.What comes next? 3, 6, 12, 24, ? (a) 48 (b) 49 (c) 42 (d) 36
27. 27.834 × 10 =
28. 28.24 × 4 =
29. 29.63 × 100 =
30. 30.Magic square (every row, column and diagonal has the same total): ? 5 6 | 3 7 11 | 8 9 4. What is the missing number?
31. 31.If today is Sunday, what day was it 59 days ago? (a) Wednesday (b) Sunday (c) Thursday (d) Friday
32. 32.Double 28 =
33. 33.The 5th of a month is a Wednesday. What day is the 15th of the same month? (a) Tuesday (b) Sunday (c) Friday (d) Saturday
34. 34.The 7th of a month is a Sunday. What day is the 27th of the same month? (a) Friday (b) Saturday (c) Tuesday (d) Sunday
35. 35.A father is 31 years old and his son is 9. How old was the father when the son was born?
36. 36.12345679 × 45 =
37. 37.538 × 10 =
38. 38.Think of 4. Multiply it by 4, then add 9. What number do you end with?
39. 39.10 × 9 =
40. 40.6 × ? = 6000

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