1089 Trick Worksheet

Maths tricks trick 7: The 1089 magic trick · Set 736 · 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. 1.594 + 495 =
2. 2.297 + 792 =
3. 3.In the 1089 trick, the subtraction gave a 3-digit number that starts with 6. What is that number?
4. 4.In the 1089 trick, the subtraction gave a 3-digit number that starts with 7. What is that number?
5. 5.In the 1089 trick, the subtraction gave a 3-digit number that starts with 1. What is that number?
6. 6.In the 1089 trick, the subtraction gave a 3-digit number that starts with 2. What is that number?
7. 7.Take 400. Reverse its digits and take the smaller number away from the bigger one. What do you get?
8. 8.693 + 396 =
9. 9.Do the 1089 trick with 976: reverse and subtract, then reverse that answer and add. What do you get?
10. 10.Take 971. Reverse its digits and take the smaller number away from the bigger one. What do you get?
11. 11.Take 834. Reverse its digits and take the smaller number away from the bigger one. What do you get?
12. 12.495 + 594 =
13. 13.In the 1089 trick, the subtraction gave a 3-digit number that starts with 4. What is that number?
14. 14.Do the 1089 trick with 328: reverse and subtract, then reverse that answer and add. What do you get?
15. 15.Do the 1089 trick with 266: reverse and subtract, then reverse that answer and add. What do you get?
16. 16.Do the 1089 trick with 977: reverse and subtract, then reverse that answer and add. What do you get?
17. 17.Do the 1089 trick with 660: reverse and subtract, then reverse that answer and add. What do you get?
18. 18.Take 970. Reverse its digits and take the smaller number away from the bigger one. What do you get?
19. 19.891 + 198 =
20. 20.Do the 1089 trick with 289: reverse and subtract, then reverse that answer and add. What do you get?
21. 21.792 + 297 =
22. 22.Take 840. Reverse its digits and take the smaller number away from the bigger one. What do you get?
23. 23.In the 1089 trick, the subtraction gave a 3-digit number that starts with 5. What is that number?
24. 24.In the 1089 trick, the subtraction gave a 3-digit number that starts with 8. What is that number?
25. 25.Take 183. Reverse its digits and take the smaller number away from the bigger one. What do you get?
26. 26.Take 780. Reverse its digits and take the smaller number away from the bigger one. What do you get?
27. 27.198 + 891 =
28. 28.Do the 1089 trick with 177: reverse and subtract, then reverse that answer and add. What do you get?
29. 29.Do the 1089 trick with 960: reverse and subtract, then reverse that answer and add. What do you get?
30. 30.Do the 1089 trick with 724: reverse and subtract, then reverse that answer and add. What do you get?
31. 31.Do the 1089 trick with 305: reverse and subtract, then reverse that answer and add. What do you get?
32. 32.Do the 1089 trick with 458: reverse and subtract, then reverse that answer and add. What do you get?
33. 33.Do the 1089 trick with 490: reverse and subtract, then reverse that answer and add. What do you get?
34. 34.Do the 1089 trick with 789: reverse and subtract, then reverse that answer and add. What do you get?
35. 35.Do the 1089 trick with 884: reverse and subtract, then reverse that answer and add. What do you get?
36. 36.Do the 1089 trick with 210: reverse and subtract, then reverse that answer and add. What do you get?
37. 37.Do the 1089 trick with 169: reverse and subtract, then reverse that answer and add. What do you get?
38. 38.Do the 1089 trick with 911: reverse and subtract, then reverse that answer and add. What do you get?
39. 39.Take 951. Reverse its digits and take the smaller number away from the bigger one. What do you get?
40. 40.Take 523. Reverse its digits and take the smaller number away from the bigger one. What do you get?

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