1089 Trick Worksheet

Maths tricks trick 7: The 1089 magic trick · Set 805 · 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.Take 770. Reverse its digits and take the smaller number away from the bigger one. What do you get?
2. 2.792 + 297 =
3. 3.198 + 891 =
4. 4.Take 714. Reverse its digits and take the smaller number away from the bigger one. What do you get?
5. 5.In the 1089 trick, the subtraction gave a 3-digit number that starts with 1. What is that number?
6. 6.297 + 792 =
7. 7.594 + 495 =
8. 8.Take 654. Reverse its digits and take the smaller number away from the bigger one. What do you get?
9. 9.Do the 1089 trick with 774: reverse and subtract, then reverse that answer and add. What do you get?
10. 10.Do the 1089 trick with 789: 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 5. What is that number?
12. 12.891 + 198 =
13. 13.693 + 396 =
14. 14.Take 119. Reverse its digits and take the smaller number away from the bigger one. What do you get?
15. 15.Do the 1089 trick with 569: reverse and subtract, then reverse that answer and add. What do you get?
16. 16.In the 1089 trick, the subtraction gave a 3-digit number that starts with 4. What is that number?
17. 17.Take 620. Reverse its digits and take the smaller number away from the bigger one. What do you get?
18. 18.396 + 693 =
19. 19.Take 367. Reverse its digits and take the smaller number away from the bigger one. What do you get?
20. 20.Take 910. Reverse its digits and take the smaller number away from the bigger one. What do you get?
21. 21.Do the 1089 trick with 267: reverse and subtract, then reverse that answer and add. What do you get?
22. 22.Take 937. Reverse its digits and take the smaller number away from the bigger one. What do you get?
23. 23.Take 700. Reverse its digits and take the smaller number away from the bigger one. What do you get?
24. 24.Take 366. Reverse its digits and take the smaller number away from the bigger one. What do you get?
25. 25.Take 854. Reverse its digits and take the smaller number away from the bigger one. What do you get?
26. 26.In the 1089 trick, the subtraction gave a 3-digit number that starts with 2. What is that number?
27. 27.Take 920. Reverse its digits and take the smaller number away from the bigger one. What do you get?
28. 28.Take 703. Reverse its digits and take the smaller number away from the bigger one. What do you get?
29. 29.In the 1089 trick, the subtraction gave a 3-digit number that starts with 3. What is that number?
30. 30.Take 852. 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 7. What is that number?
32. 32.Take 689. Reverse its digits and take the smaller number away from the bigger one. What do you get?
33. 33.Do the 1089 trick with 206: reverse and subtract, then reverse that answer and add. What do you get?
34. 34.Take 540. Reverse its digits and take the smaller number away from the bigger one. What do you get?
35. 35.Take 320. Reverse its digits and take the smaller number away from the bigger one. What do you get?
36. 36.In the 1089 trick, the subtraction gave a 3-digit number that starts with 6. What is that number?
37. 37.Do the 1089 trick with 950: reverse and subtract, then reverse that answer and add. What do you get?
38. 38.Take 310. Reverse its digits and take the smaller number away from the bigger one. What do you get?
39. 39.Take 462. Reverse its digits and take the smaller number away from the bigger one. What do you get?
40. 40.Take 973. Reverse its digits and take the smaller number away from the bigger one. What do you get?

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