1089 Trick Worksheet

Maths tricks trick 7: The 1089 magic trick · Set 139 · 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.Take 890. Reverse its digits and take the smaller number away from the bigger one. What do you get?
3. 3.Take 580. Reverse its digits and take the smaller number away from the bigger one. What do you get?
4. 4.693 + 396 =
5. 5.Take 368. Reverse its digits and take the smaller number away from the bigger one. What do you get?
6. 6.Do the 1089 trick with 432: reverse and subtract, then reverse that answer and add. What do you get?
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 980. Reverse its digits and take the smaller number away from the bigger one. What do you get?
10. 10.Do the 1089 trick with 431: reverse and subtract, then reverse that answer and add. What do you get?
11. 11.In the 1089 trick, the subtraction gave a 3-digit number that starts with 2. What is that number?
12. 12.Do the 1089 trick with 844: reverse and subtract, then reverse that answer and add. What do you get?
13. 13.Do the 1089 trick with 513: reverse and subtract, then reverse that answer and add. What do you get?
14. 14.Do the 1089 trick with 972: reverse and subtract, then reverse that answer and add. What do you get?
15. 15.In the 1089 trick, the subtraction gave a 3-digit number that starts with 4. What is that number?
16. 16.Take 610. Reverse its digits and take the smaller number away from the bigger one. What do you get?
17. 17.297 + 792 =
18. 18.In the 1089 trick, the subtraction gave a 3-digit number that starts with 3. What is that number?
19. 19.Take 548. Reverse its digits and take the smaller number away from the bigger one. What do you get?
20. 20.In the 1089 trick, the subtraction gave a 3-digit number that starts with 5. What is that number?
21. 21.Take 910. Reverse its digits and take the smaller number away from the bigger one. What do you get?
22. 22.Take 470. Reverse its digits and take the smaller number away from the bigger one. What do you get?
23. 23.Take 714. Reverse its digits and take the smaller number away from the bigger one. What do you get?
24. 24.198 + 891 =
25. 25.Do the 1089 trick with 470: reverse and subtract, then reverse that answer and add. What do you get?
26. 26.Take 439. Reverse its digits and take the smaller number away from the bigger one. What do you get?
27. 27.Do the 1089 trick with 628: reverse and subtract, then reverse that answer and add. What do you get?
28. 28.In the 1089 trick, the subtraction gave a 3-digit number that starts with 1. What is that number?
29. 29.Do the 1089 trick with 369: reverse and subtract, then reverse that answer and add. What do you get?
30. 30.Do the 1089 trick with 759: reverse and subtract, then reverse that answer and add. What do you get?
31. 31.Do the 1089 trick with 930: reverse and subtract, then reverse that answer and add. What do you get?
32. 32.Do the 1089 trick with 993: reverse and subtract, then reverse that answer and add. What do you get?
33. 33.Do the 1089 trick with 189: reverse and subtract, then reverse that answer and add. What do you get?
34. 34.Do the 1089 trick with 960: reverse and subtract, then reverse that answer and add. What do you get?
35. 35.Take 810. Reverse its digits and take the smaller number away from the bigger one. What do you get?
36. 36.Take 971. Reverse its digits and take the smaller number away from the bigger one. What do you get?
37. 37.Take 825. Reverse its digits and take the smaller number away from the bigger one. What do you get?
38. 38.Do the 1089 trick with 599: reverse and subtract, then reverse that answer and add. What do you get?
39. 39.Do the 1089 trick with 973: reverse and subtract, then reverse that answer and add. What do you get?
40. 40.Take 350. Reverse its digits and take the smaller number away from the bigger one. What do you get?

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