1089 Trick Worksheet

Maths tricks trick 7: The 1089 magic trick · Set 609 · 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 257. Reverse its digits and take the smaller number away from the bigger one. What do you get?
4. 4.Take 830. Reverse its digits and take the smaller number away from the bigger one. What do you get?
5. 5.Take 267. Reverse its digits and take the smaller number away from the bigger one. What do you get?
6. 6.Take 884. Reverse its digits and take the smaller number away from the bigger one. What do you get?
7. 7.Take 833. Reverse its digits and take the smaller number away from the bigger one. What do you get?
8. 8.Do the 1089 trick with 744: reverse and subtract, then reverse that answer and add. What do you get?
9. 9.In the 1089 trick, the subtraction gave a 3-digit number that starts with 2. What is that number?
10. 10.Do the 1089 trick with 144: reverse and subtract, then reverse that answer and add. What do you get?
11. 11.Take 501. Reverse its digits and take the smaller number away from the bigger one. What do you get?
12. 12.In the 1089 trick, the subtraction gave a 3-digit number that starts with 8. What is that number?
13. 13.Take 601. Reverse its digits and take the smaller number away from the bigger one. What do you get?
14. 14.396 + 693 =
15. 15.792 + 297 =
16. 16.Take 966. Reverse its digits and take the smaller number away from the bigger one. What do you get?
17. 17.Take 246. Reverse its digits and take the smaller number away from the bigger one. What do you get?
18. 18.297 + 792 =
19. 19.693 + 396 =
20. 20.Take 559. Reverse its digits and take the smaller number away from the bigger one. What do you get?
21. 21.In the 1089 trick, the subtraction gave a 3-digit number that starts with 4. What is that number?
22. 22.Do the 1089 trick with 547: reverse and subtract, then reverse that answer and add. What do you get?
23. 23.Do the 1089 trick with 911: reverse and subtract, then reverse that answer and add. What do you get?
24. 24.Take 934. Reverse its digits and take the smaller number away from the bigger one. What do you get?
25. 25.Do the 1089 trick with 257: reverse and subtract, then reverse that answer and add. What do you get?
26. 26.Do the 1089 trick with 976: reverse and subtract, then reverse that answer and add. What do you get?
27. 27.Take 430. Reverse its digits and take the smaller number away from the bigger one. What do you get?
28. 28.Do the 1089 trick with 377: reverse and subtract, then reverse that answer and add. What do you get?
29. 29.Take 806. Reverse its digits and take the smaller number away from the bigger one. What do you get?
30. 30.Do the 1089 trick with 260: reverse and subtract, then reverse that answer and add. What do you get?
31. 31.Take 980. Reverse its digits and take the smaller number away from the bigger one. What do you get?
32. 32.Do the 1089 trick with 310: reverse and subtract, then reverse that answer and add. What do you get?
33. 33.Do the 1089 trick with 210: reverse and subtract, then reverse that answer and add. What do you get?
34. 34.Take 442. Reverse its digits and take the smaller number away from the bigger one. What do you get?
35. 35.Do the 1089 trick with 760: reverse and subtract, then reverse that answer and add. What do you get?
36. 36.Take 643. Reverse its digits and take the smaller number away from the bigger one. What do you get?
37. 37.Take 812. Reverse its digits and take the smaller number away from the bigger one. What do you get?
38. 38.Take 470. Reverse its digits and take the smaller number away from the bigger one. What do you get?
39. 39.Take 916. Reverse its digits and take the smaller number away from the bigger one. What do you get?
40. 40.Take 987. Reverse its digits and take the smaller number away from the bigger one. What do you get?

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