1089 Trick Worksheet

Maths tricks trick 7: The 1089 magic trick · Set 739 · 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. 1.891 + 198 =
2. 2.Take 412. Reverse its digits and take the smaller number away from the bigger one. What do you get?
3. 3.Do the 1089 trick with 604: reverse and subtract, then reverse that answer and add. What do you get?
4. 4.Do the 1089 trick with 920: reverse and subtract, then reverse that answer and add. What do you get?
5. 5.In the 1089 trick, the subtraction gave a 3-digit number that starts with 3. What is that number?
6. 6.Take 245. Reverse its digits and take the smaller number away from the bigger one. What do you get?
7. 7.Do the 1089 trick with 558: reverse and subtract, then reverse that answer and add. What do you get?
8. 8.In the 1089 trick, the subtraction gave a 3-digit number that starts with 8. What is that number?
9. 9.495 + 594 =
10. 10.198 + 891 =
11. 11.Do the 1089 trick with 792: reverse and subtract, then reverse that answer and add. What do you get?
12. 12.Take 552. Reverse its digits and take the smaller number away from the bigger one. What do you get?
13. 13.Take 659. Reverse its digits and take the smaller number away from the bigger one. What do you get?
14. 14.In the 1089 trick, the subtraction gave a 3-digit number that starts with 5. What is that number?
15. 15.792 + 297 =
16. 16.Do the 1089 trick with 822: reverse and subtract, then reverse that answer and add. What do you get?
17. 17.Do the 1089 trick with 179: reverse and subtract, then reverse that answer and add. What do you get?
18. 18.Take 880. Reverse its digits and take the smaller number away from the bigger one. What do you get?
19. 19.Take 129. Reverse its digits and take the smaller number away from the bigger one. What do you get?
20. 20.Do the 1089 trick with 861: reverse and subtract, then reverse that answer and add. What do you get?
21. 21.Take 360. Reverse its digits and take the smaller number away from the bigger one. What do you get?
22. 22.Do the 1089 trick with 279: reverse and subtract, then reverse that answer and add. What do you get?
23. 23.Take 690. Reverse its digits and take the smaller number away from the bigger one. What do you get?
24. 24.In the 1089 trick, the subtraction gave a 3-digit number that starts with 2. What is that number?
25. 25.Take 572. Reverse its digits and take the smaller number away from the bigger one. What do you get?
26. 26.Do the 1089 trick with 960: reverse and subtract, then reverse that answer and add. What do you get?
27. 27.Take 310. Reverse its digits and take the smaller number away from the bigger one. What do you get?
28. 28.Take 513. Reverse its digits and take the smaller number away from the bigger one. What do you get?
29. 29.Take 338. Reverse its digits and take the smaller number away from the bigger one. What do you get?
30. 30.Take 600. Reverse its digits and take the smaller number away from the bigger one. What do you get?
31. 31.In the 1089 trick, the subtraction gave a 3-digit number that starts with 6. What is that number?
32. 32.Take 734. Reverse its digits and take the smaller number away from the bigger one. What do you get?
33. 33.Do the 1089 trick with 520: reverse and subtract, then reverse that answer and add. What do you get?
34. 34.Take 760. Reverse its digits and take the smaller number away from the bigger one. What do you get?
35. 35.Take 811. Reverse its digits and take the smaller number away from the bigger one. What do you get?
36. 36.Take 388. Reverse its digits and take the smaller number away from the bigger one. What do you get?
37. 37.Take 602. Reverse its digits and take the smaller number away from the bigger one. What do you get?
38. 38.Do the 1089 trick with 965: reverse and subtract, then reverse that answer and add. What do you get?
39. 39.Take 903. Reverse its digits and take the smaller number away from the bigger one. What do you get?
40. 40.Do the 1089 trick with 264: reverse and subtract, then reverse that answer and add. What do you get?

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