1089 Trick Worksheet

Maths tricks trick 7: The 1089 magic trick · Set 592 · 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 6. What is that number?
2. 2.Take 580. Reverse its digits and take the smaller number away from the bigger one. What do you get?
3. 3.Take 741. Reverse its digits and take the smaller number away from the bigger one. What do you get?
4. 4.693 + 396 =
5. 5.Do the 1089 trick with 719: reverse and subtract, then reverse that answer and add. What do you get?
6. 6.297 + 792 =
7. 7.In the 1089 trick, the subtraction gave a 3-digit number that starts with 8. What is that number?
8. 8.594 + 495 =
9. 9.Take 971. Reverse its digits and take the smaller number away from the bigger one. What do you get?
10. 10.Do the 1089 trick with 522: reverse and subtract, then reverse that answer and add. What do you get?
11. 11.Take 960. Reverse its digits and take the smaller number away from the bigger one. What do you get?
12. 12.Take 980. Reverse its digits and take the smaller number away from the bigger one. What do you get?
13. 13.Do the 1089 trick with 500: reverse and subtract, then reverse that answer and add. What do you get?
14. 14.Take 813. Reverse its digits and take the smaller number away from the bigger one. What do you get?
15. 15.Take 669. Reverse its digits and take the smaller number away from the bigger one. What do you get?
16. 16.In the 1089 trick, the subtraction gave a 3-digit number that starts with 7. What is that number?
17. 17.Do the 1089 trick with 508: reverse and subtract, then reverse that answer and add. What do you get?
18. 18.Take 593. Reverse its digits and take the smaller number away from the bigger one. What do you get?
19. 19.Do the 1089 trick with 570: reverse and subtract, then reverse that answer and add. What do you get?
20. 20.Do the 1089 trick with 990: reverse and subtract, then reverse that answer and add. What do you get?
21. 21.Take 482. Reverse its digits and take the smaller number away from the bigger one. What do you get?
22. 22.Take 560. Reverse its digits and take the smaller number away from the bigger one. What do you get?
23. 23.In the 1089 trick, the subtraction gave a 3-digit number that starts with 5. What is that number?
24. 24.Take 468. Reverse its digits and take the smaller number away from the bigger one. What do you get?
25. 25.In the 1089 trick, the subtraction gave a 3-digit number that starts with 3. What is that number?
26. 26.Do the 1089 trick with 225: reverse and subtract, then reverse that answer and add. What do you get?
27. 27.Do the 1089 trick with 980: reverse and subtract, then reverse that answer and add. What do you get?
28. 28.Do the 1089 trick with 684: reverse and subtract, then reverse that answer and add. What do you get?
29. 29.Take 870. Reverse its digits and take the smaller number away from the bigger one. What do you get?
30. 30.Take 528. Reverse its digits and take the smaller number away from the bigger one. What do you get?
31. 31.495 + 594 =
32. 32.Take 892. Reverse its digits and take the smaller number away from the bigger one. What do you get?
33. 33.Do the 1089 trick with 321: reverse and subtract, then reverse that answer and add. What do you get?
34. 34.Take 638. Reverse its digits and take the smaller number away from the bigger one. What do you get?
35. 35.Do the 1089 trick with 799: reverse and subtract, then reverse that answer and add. What do you get?
36. 36.Take 800. Reverse its digits and take the smaller number away from the bigger one. What do you get?
37. 37.Take 619. Reverse its digits and take the smaller number away from the bigger one. What do you get?
38. 38.Take 805. Reverse its digits and take the smaller number away from the bigger one. What do you get?
39. 39.Do the 1089 trick with 517: reverse and subtract, then reverse that answer and add. What do you get?
40. 40.Do the 1089 trick with 411: reverse and subtract, then reverse that answer and add. What do you get?

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