1089 Trick Worksheet

Maths tricks trick 7: The 1089 magic trick · Set 799 · 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. 2.594 + 495 =
3. 3.Take 940. Reverse its digits and take the smaller number away from the bigger one. What do you get?
4. 4.693 + 396 =
5. 5.In the 1089 trick, the subtraction gave a 3-digit number that starts with 4. What is that number?
6. 6.792 + 297 =
7. 7.Take 220. Reverse its digits and take the smaller number away from the bigger one. What do you get?
8. 8.Do the 1089 trick with 920: reverse and subtract, then reverse that answer and add. What do you get?
9. 9.Do the 1089 trick with 591: reverse and subtract, then reverse that answer and add. What do you get?
10. 10.Take 920. Reverse its digits and take the smaller number away from the bigger one. What do you get?
11. 11.Do the 1089 trick with 960: reverse and subtract, then reverse that answer and add. What do you get?
12. 12.Take 825. Reverse its digits and take the smaller number away from the bigger one. What do you get?
13. 13.Do the 1089 trick with 623: reverse and subtract, then reverse that answer and add. What do you get?
14. 14.495 + 594 =
15. 15.Take 358. Reverse its digits and take the smaller number away from the bigger one. What do you get?
16. 16.396 + 693 =
17. 17.In the 1089 trick, the subtraction gave a 3-digit number that starts with 6. What is that number?
18. 18.Take 972. Reverse its digits and take the smaller number away from the bigger one. What do you get?
19. 19.297 + 792 =
20. 20.In the 1089 trick, the subtraction gave a 3-digit number that starts with 2. What is that number?
21. 21.198 + 891 =
22. 22.Do the 1089 trick with 376: 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.Do the 1089 trick with 650: reverse and subtract, then reverse that answer and add. What do you get?
25. 25.Take 974. Reverse its digits and take the smaller number away from the bigger one. What do you get?
26. 26.Do the 1089 trick with 340: reverse and subtract, then reverse that answer and add. What do you get?
27. 27.Take 472. Reverse its digits and take the smaller number away from the bigger one. What do you get?
28. 28.Do the 1089 trick with 356: reverse and subtract, then reverse that answer and add. What do you get?
29. 29.Take 951. Reverse its digits and take the smaller number away from the bigger one. What do you get?
30. 30.Do the 1089 trick with 119: reverse and subtract, then reverse that answer and add. What do you get?
31. 31.Take 773. Reverse its digits and take the smaller number away from the bigger one. What do you get?
32. 32.Do the 1089 trick with 301: reverse and subtract, then reverse that answer and add. What do you get?
33. 33.Do the 1089 trick with 714: reverse and subtract, then reverse that answer and add. What do you get?
34. 34.In the 1089 trick, the subtraction gave a 3-digit number that starts with 3. What is that number?
35. 35.Take 208. Reverse its digits and take the smaller number away from the bigger one. What do you get?
36. 36.Take 724. Reverse its digits and take the smaller number away from the bigger one. What do you get?
37. 37.Take 378. Reverse its digits and take the smaller number away from the bigger one. What do you get?
38. 38.Do the 1089 trick with 351: reverse and subtract, then reverse that answer and add. What do you get?
39. 39.Take 985. Reverse its digits and take the smaller number away from the bigger one. What do you get?
40. 40.Take 400. Reverse its digits and take the smaller number away from the bigger one. What do you get?

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