1089 Trick Worksheet

Maths tricks trick 7: The 1089 magic trick · Set 602 · 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. 1.693 + 396 =
2. 2.In the 1089 trick, the subtraction gave a 3-digit number that starts with 6. What is that number?
3. 3.Take 379. Reverse its digits and take the smaller number away from the bigger one. What do you get?
4. 4.891 + 198 =
5. 5.In the 1089 trick, the subtraction gave a 3-digit number that starts with 3. What is that number?
6. 6.In the 1089 trick, the subtraction gave a 3-digit number that starts with 1. What is that number?
7. 7.297 + 792 =
8. 8.Take 239. Reverse its digits and take the smaller number away from the bigger one. What do you get?
9. 9.Take 735. Reverse its digits and take the smaller number away from the bigger one. What do you get?
10. 10.Take 759. Reverse its digits and take the smaller number away from the bigger one. What do you get?
11. 11.198 + 891 =
12. 12.Take 169. Reverse its digits and take the smaller number away from the bigger one. What do you get?
13. 13.Take 179. Reverse its digits and take the smaller number away from the bigger one. What do you get?
14. 14.Do the 1089 trick with 890: reverse and subtract, then reverse that answer and add. What do you get?
15. 15.Take 284. 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 4. What is that number?
17. 17.Do the 1089 trick with 317: reverse and subtract, then reverse that answer and add. What do you get?
18. 18.In the 1089 trick, the subtraction gave a 3-digit number that starts with 5. What is that number?
19. 19.Take 618. Reverse its digits and take the smaller number away from the bigger one. What do you get?
20. 20.Take 118. Reverse its digits and take the smaller number away from the bigger one. What do you get?
21. 21.594 + 495 =
22. 22.Take 820. Reverse its digits and take the smaller number away from the bigger one. What do you get?
23. 23.Do the 1089 trick with 184: reverse and subtract, then reverse that answer and add. What do you get?
24. 24.Take 614. Reverse its digits and take the smaller number away from the bigger one. What do you get?
25. 25.Do the 1089 trick with 117: reverse and subtract, then reverse that answer and add. What do you get?
26. 26.In the 1089 trick, the subtraction gave a 3-digit number that starts with 2. What is that number?
27. 27.Take 442. Reverse its digits and take the smaller number away from the bigger one. What do you get?
28. 28.Take 961. Reverse its digits and take the smaller number away from the bigger one. What do you get?
29. 29.Do the 1089 trick with 941: reverse and subtract, then reverse that answer and add. What do you get?
30. 30.Take 126. Reverse its digits and take the smaller number away from the bigger one. What do you get?
31. 31.792 + 297 =
32. 32.Do the 1089 trick with 308: reverse and subtract, then reverse that answer and add. What do you get?
33. 33.Do the 1089 trick with 583: reverse and subtract, then reverse that answer and add. What do you get?
34. 34.Take 920. Reverse its digits and take the smaller number away from the bigger one. What do you get?
35. 35.Take 199. Reverse its digits and take the smaller number away from the bigger one. What do you get?
36. 36.Do the 1089 trick with 482: reverse and subtract, then reverse that answer and add. What do you get?
37. 37.Do the 1089 trick with 781: reverse and subtract, then reverse that answer and add. What do you get?
38. 38.Take 500. Reverse its digits and take the smaller number away from the bigger one. What do you get?
39. 39.Take 503. Reverse its digits and take the smaller number away from the bigger one. What do you get?
40. 40.Take 196. Reverse its digits and take the smaller number away from the bigger one. What do you get?

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