1089 Trick Worksheet

Maths tricks trick 7: The 1089 magic trick · Set 93 · 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 1. What is that number?
2. 2.Do the 1089 trick with 339: reverse and subtract, then reverse that answer and add. What do you get?
3. 3.In the 1089 trick, the subtraction gave a 3-digit number that starts with 2. What is that number?
4. 4.693 + 396 =
5. 5.Do the 1089 trick with 406: reverse and subtract, then reverse that answer and add. What do you get?
6. 6.In the 1089 trick, the subtraction gave a 3-digit number that starts with 6. What is that number?
7. 7.Do the 1089 trick with 673: reverse and subtract, then reverse that answer and add. What do you get?
8. 8.Do the 1089 trick with 955: reverse and subtract, then reverse that answer and add. What do you get?
9. 9.In the 1089 trick, the subtraction gave a 3-digit number that starts with 5. What is that number?
10. 10.Do the 1089 trick with 910: reverse and subtract, then reverse that answer and add. What do you get?
11. 11.Take 910. Reverse its digits and take the smaller number away from the bigger one. What do you get?
12. 12.594 + 495 =
13. 13.891 + 198 =
14. 14.Do the 1089 trick with 126: reverse and subtract, then reverse that answer and add. What do you get?
15. 15.Do the 1089 trick with 168: reverse and subtract, then reverse that answer and add. What do you get?
16. 16.Do the 1089 trick with 921: reverse and subtract, then reverse that answer and add. What do you get?
17. 17.Take 754. Reverse its digits and take the smaller number away from the bigger one. What do you get?
18. 18.Take 234. Reverse its digits and take the smaller number away from the bigger one. What do you get?
19. 19.Take 630. Reverse its digits and take the smaller number away from the bigger one. What do you get?
20. 20.792 + 297 =
21. 21.Do the 1089 trick with 950: reverse and subtract, then reverse that answer and add. What do you get?
22. 22.Do the 1089 trick with 217: reverse and subtract, then reverse that answer and add. What do you get?
23. 23.In the 1089 trick, the subtraction gave a 3-digit number that starts with 8. What is that number?
24. 24.Do the 1089 trick with 740: reverse and subtract, then reverse that answer and add. What do you get?
25. 25.Do the 1089 trick with 670: reverse and subtract, then reverse that answer and add. What do you get?
26. 26.Do the 1089 trick with 360: reverse and subtract, then reverse that answer and add. What do you get?
27. 27.Take 980. Reverse its digits and take the smaller number away from the bigger one. What do you get?
28. 28.Take 990. Reverse its digits and take the smaller number away from the bigger one. What do you get?
29. 29.Take 753. Reverse its digits and take the smaller number away from the bigger one. What do you get?
30. 30.In the 1089 trick, the subtraction gave a 3-digit number that starts with 3. What is that number?
31. 31.Take 936. Reverse its digits and take the smaller number away from the bigger one. What do you get?
32. 32.198 + 891 =
33. 33.Do the 1089 trick with 240: reverse and subtract, then reverse that answer and add. What do you get?
34. 34.Take 163. Reverse its digits and take the smaller number away from the bigger one. What do you get?
35. 35.In the 1089 trick, the subtraction gave a 3-digit number that starts with 4. What is that number?
36. 36.In the 1089 trick, the subtraction gave a 3-digit number that starts with 7. What is that number?
37. 37.Do the 1089 trick with 518: reverse and subtract, then reverse that answer and add. What do you get?
38. 38.Do the 1089 trick with 350: reverse and subtract, then reverse that answer and add. What do you get?
39. 39.297 + 792 =
40. 40.Do the 1089 trick with 550: reverse and subtract, then reverse that answer and add. What do you get?

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