1089 Trick Worksheet

Maths tricks trick 7: The 1089 magic trick · Set 533 · 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 8. What is that number?
2. 2.495 + 594 =
3. 3.In the 1089 trick, the subtraction gave a 3-digit number that starts with 4. What is that number?
4. 4.Do the 1089 trick with 456: reverse and subtract, then reverse that answer and add. What do you get?
5. 5.Take 832. Reverse its digits and take the smaller number away from the bigger one. What do you get?
6. 6.Take 236. Reverse its digits and take the smaller number away from the bigger one. What do you get?
7. 7.891 + 198 =
8. 8.Do the 1089 trick with 960: reverse and subtract, then reverse that answer and add. What do you get?
9. 9.693 + 396 =
10. 10.396 + 693 =
11. 11.Do the 1089 trick with 389: reverse and subtract, then reverse that answer and add. What do you get?
12. 12.Take 239. Reverse its digits and take the smaller number away from the bigger one. What do you get?
13. 13.Take 490. Reverse its digits and take the smaller number away from the bigger one. What do you get?
14. 14.Take 850. Reverse its digits and take the smaller number away from the bigger one. What do you get?
15. 15.Take 731. Reverse its digits and take the smaller number away from the bigger one. What do you get?
16. 16.198 + 891 =
17. 17.Take 790. Reverse its digits and take the smaller number away from the bigger one. What do you get?
18. 18.Take 176. Reverse its digits and take the smaller number away from the bigger one. What do you get?
19. 19.Take 896. Reverse its digits and take the smaller number away from the bigger one. What do you get?
20. 20.Do the 1089 trick with 947: reverse and subtract, then reverse that answer and add. What do you get?
21. 21.Do the 1089 trick with 219: reverse and subtract, then reverse that answer and add. What do you get?
22. 22.In the 1089 trick, the subtraction gave a 3-digit number that starts with 6. What is that number?
23. 23.Take 704. 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 5. What is that number?
25. 25.Take 990. Reverse its digits and take the smaller number away from the bigger one. What do you get?
26. 26.792 + 297 =
27. 27.Take 621. Reverse its digits and take the smaller number away from the bigger one. What do you get?
28. 28.Take 641. Reverse its digits and take the smaller number away from the bigger one. What do you get?
29. 29.594 + 495 =
30. 30.Take 129. 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 2. What is that number?
32. 32.Take 950. Reverse its digits and take the smaller number away from the bigger one. What do you get?
33. 33.In the 1089 trick, the subtraction gave a 3-digit number that starts with 1. What is that number?
34. 34.Do the 1089 trick with 287: 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 7. What is that number?
36. 36.Do the 1089 trick with 177: reverse and subtract, then reverse that answer and add. What do you get?
37. 37.Take 954. Reverse its digits and take the smaller number away from the bigger one. What do you get?
38. 38.Take 973. Reverse its digits and take the smaller number away from the bigger one. What do you get?
39. 39.Take 900. Reverse its digits and take the smaller number away from the bigger one. What do you get?
40. 40.Take 139. Reverse its digits and take the smaller number away from the bigger one. What do you get?

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