1089 Trick Worksheet

Maths tricks trick 7: The 1089 magic trick · Set 801 · 40 questions

The trick (Reverse and subtract): Reverse the number and take the smaller number away from the bigger one. The answer is always one of 198, 297, 396, 495, 594, 693, 792, 891: middle digit 9, first and last digits adding to 9. Reverse that answer and add: you always get 1089.

1. 1.In the 1089 trick, the subtraction gave a 3-digit number that starts with 7. What is that number?
2. 2.In the 1089 trick, the subtraction gave a 3-digit number that starts with 6. What is that number?
3. 3.Take 911. Reverse its digits and take the smaller number away from the bigger one. What do you get?
4. 4.Do the 1089 trick with 279: reverse and subtract, then reverse that answer and add. What do you get?
5. 5.Take 338. Reverse its digits and take the smaller number away from the bigger one. What do you get?
6. 6.Take 422. Reverse its digits and take the smaller number away from the bigger one. What do you get?
7. 7.In the 1089 trick, the subtraction gave a 3-digit number that starts with 3. What is that number?
8. 8.Do the 1089 trick with 389: reverse and subtract, then reverse that answer and add. What do you get?
9. 9.Do the 1089 trick with 764: reverse and subtract, then reverse that answer and add. What do you get?
10. 10.693 + 396 =
11. 11.495 + 594 =
12. 12.In the 1089 trick, the subtraction gave a 3-digit number that starts with 8. What is that number?
13. 13.Do the 1089 trick with 260: reverse and subtract, then reverse that answer and add. What do you get?
14. 14.Take 669. Reverse its digits and take the smaller number away from the bigger one. What do you get?
15. 15.Do the 1089 trick with 671: reverse and subtract, then reverse that answer and add. What do you get?
16. 16.297 + 792 =
17. 17.Take 910. Reverse its digits and take the smaller number away from the bigger one. What do you get?
18. 18.792 + 297 =
19. 19.Do the 1089 trick with 410: reverse and subtract, then reverse that answer and add. What do you get?
20. 20.Take 811. Reverse its digits and take the smaller number away from the bigger one. What do you get?
21. 21.Do the 1089 trick with 412: reverse and subtract, then reverse that answer and add. What do you get?
22. 22.891 + 198 =
23. 23.In the 1089 trick, the subtraction gave a 3-digit number that starts with 5. What is that number?
24. 24.Take 381. Reverse its digits and take the smaller number away from the bigger one. What do you get?
25. 25.Take 732. Reverse its digits and take the smaller number away from the bigger one. What do you get?
26. 26.Do the 1089 trick with 679: reverse and subtract, then reverse that answer and add. What do you get?
27. 27.Do the 1089 trick with 158: reverse and subtract, then reverse that answer and add. What do you get?
28. 28.In the 1089 trick, the subtraction gave a 3-digit number that starts with 4. What is that number?
29. 29.Do the 1089 trick with 193: reverse and subtract, then reverse that answer and add. What do you get?
30. 30.Take 967. Reverse its digits and take the smaller number away from the bigger one. What do you get?
31. 31.Do the 1089 trick with 459: reverse and subtract, then reverse that answer and add. What do you get?
32. 32.Take 370. Reverse its digits and take the smaller number away from the bigger one. What do you get?
33. 33.Do the 1089 trick with 390: reverse and subtract, then reverse that answer and add. What do you get?
34. 34.Do the 1089 trick with 930: reverse and subtract, then reverse that answer and add. What do you get?
35. 35.In the 1089 trick, the subtraction gave a 3-digit number that starts with 1. What is that number?
36. 36.Take 477. Reverse its digits and take the smaller number away from the bigger one. What do you get?
37. 37.Take 770. Reverse its digits and take the smaller number away from the bigger one. What do you get?
38. 38.Take 810. Reverse its digits and take the smaller number away from the bigger one. What do you get?
39. 39.Take 789. Reverse its digits and take the smaller number away from the bigger one. What do you get?
40. 40.198 + 891 =

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