1089 Trick Worksheet

Maths tricks trick 7: The 1089 magic trick · Set 599 · 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. 2.792 + 297 =
3. 3.Take 916. Reverse its digits and take the smaller number away from the bigger one. What do you get?
4. 4.Do the 1089 trick with 109: reverse and subtract, then reverse that answer and add. What do you get?
5. 5.Take 668. Reverse its digits and take the smaller number away from the bigger one. What do you get?
6. 6.In the 1089 trick, the subtraction gave a 3-digit number that starts with 3. What is that number?
7. 7.Take 582. Reverse its digits and take the smaller number away from the bigger one. What do you get?
8. 8.198 + 891 =
9. 9.Take 370. Reverse its digits and take the smaller number away from the bigger one. What do you get?
10. 10.891 + 198 =
11. 11.In the 1089 trick, the subtraction gave a 3-digit number that starts with 4. What is that number?
12. 12.Take 103. Reverse its digits and take the smaller number away from the bigger one. What do you get?
13. 13.Take 416. Reverse its digits and take the smaller number away from the bigger one. What do you get?
14. 14.Do the 1089 trick with 835: reverse and subtract, then reverse that answer and add. What do you get?
15. 15.Do the 1089 trick with 146: reverse and subtract, then reverse that answer and add. What do you get?
16. 16.Do the 1089 trick with 683: reverse and subtract, then reverse that answer and add. What do you get?
17. 17.Take 459. Reverse its digits and take the smaller number away from the bigger one. What do you get?
18. 18.Take 590. Reverse its digits and take the smaller number away from the bigger one. What do you get?
19. 19.Take 880. Reverse its digits and take the smaller number away from the bigger one. What do you get?
20. 20.Take 215. Reverse its digits and take the smaller number away from the bigger one. What do you get?
21. 21.In the 1089 trick, the subtraction gave a 3-digit number that starts with 1. What is that number?
22. 22.Take 337. Reverse its digits and take the smaller number away from the bigger one. What do you get?
23. 23.Do the 1089 trick with 430: reverse and subtract, then reverse that answer and add. What do you get?
24. 24.Take 530. Reverse its digits and take the smaller number away from the bigger one. What do you get?
25. 25.693 + 396 =
26. 26.Take 196. Reverse its digits and take the smaller number away from the bigger one. What do you get?
27. 27.Take 961. Reverse its digits and take the smaller number away from the bigger one. What do you get?
28. 28.Take 634. Reverse its digits and take the smaller number away from the bigger one. What do you get?
29. 29.495 + 594 =
30. 30.297 + 792 =
31. 31.Do the 1089 trick with 268: reverse and subtract, then reverse that answer and add. What do you get?
32. 32.In the 1089 trick, the subtraction gave a 3-digit number that starts with 2. What is that number?
33. 33.Take 922. Reverse its digits and take the smaller number away from the bigger one. What do you get?
34. 34.Do the 1089 trick with 806: 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 5. What is that number?
36. 36.Do the 1089 trick with 902: reverse and subtract, then reverse that answer and add. What do you get?
37. 37.Do the 1089 trick with 147: reverse and subtract, then reverse that answer and add. What do you get?
38. 38.Take 986. Reverse its digits and take the smaller number away from the bigger one. What do you get?
39. 39.Take 882. Reverse its digits and take the smaller number away from the bigger one. What do you get?
40. 40.Take 940. Reverse its digits and take the smaller number away from the bigger one. What do you get?

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