1089 Trick Worksheet

Maths tricks trick 7: The 1089 magic trick · Set 252 · 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 5. What is that number?
2. 2.Take 950. Reverse its digits and take the smaller number away from the bigger one. What do you get?
3. 3.In the 1089 trick, the subtraction gave a 3-digit number that starts with 1. What is that number?
4. 4.792 + 297 =
5. 5.Take 856. Reverse its digits and take the smaller number away from the bigger one. What do you get?
6. 6.Do the 1089 trick with 940: reverse and subtract, then reverse that answer and add. What do you get?
7. 7.Take 910. Reverse its digits and take the smaller number away from the bigger one. What do you get?
8. 8.Take 104. Reverse its digits and take the smaller number away from the bigger one. What do you get?
9. 9.297 + 792 =
10. 10.Do the 1089 trick with 270: reverse and subtract, then reverse that answer and add. What do you get?
11. 11.891 + 198 =
12. 12.Do the 1089 trick with 740: reverse and subtract, then reverse that answer and add. What do you get?
13. 13.495 + 594 =
14. 14.Take 700. Reverse its digits and take the smaller number away from the bigger one. What do you get?
15. 15.Do the 1089 trick with 890: reverse and subtract, then reverse that answer and add. What do you get?
16. 16.Take 600. Reverse its digits and take the smaller number away from the bigger one. What do you get?
17. 17.Do the 1089 trick with 267: reverse and subtract, then reverse that answer and add. What do you get?
18. 18.Do the 1089 trick with 845: reverse and subtract, then reverse that answer and add. What do you get?
19. 19.In the 1089 trick, the subtraction gave a 3-digit number that starts with 8. What is that number?
20. 20.Take 113. Reverse its digits and take the smaller number away from the bigger one. What do you get?
21. 21.Do the 1089 trick with 540: reverse and subtract, then reverse that answer and add. What do you get?
22. 22.198 + 891 =
23. 23.Do the 1089 trick with 996: reverse and subtract, then reverse that answer and add. What do you get?
24. 24.Do the 1089 trick with 397: reverse and subtract, then reverse that answer and add. What do you get?
25. 25.Do the 1089 trick with 910: reverse and subtract, then reverse that answer and add. What do you get?
26. 26.In the 1089 trick, the subtraction gave a 3-digit number that starts with 7. What is that number?
27. 27.Do the 1089 trick with 914: reverse and subtract, then reverse that answer and add. What do you get?
28. 28.Do the 1089 trick with 947: reverse and subtract, then reverse that answer and add. What do you get?
29. 29.Do the 1089 trick with 801: reverse and subtract, then reverse that answer and add. What do you get?
30. 30.Do the 1089 trick with 733: reverse and subtract, then reverse that answer and add. What do you get?
31. 31.Take 611. Reverse its digits and take the smaller number away from the bigger one. What do you get?
32. 32.693 + 396 =
33. 33.Take 189. Reverse its digits and take the smaller number away from the bigger one. What do you get?
34. 34.Take 632. Reverse its digits and take the smaller number away from the bigger one. What do you get?
35. 35.Take 183. 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 2. What is that number?
37. 37.Take 458. Reverse its digits and take the smaller number away from the bigger one. What do you get?
38. 38.Do the 1089 trick with 761: reverse and subtract, then reverse that answer and add. What do you get?
39. 39.Take 930. Reverse its digits and take the smaller number away from the bigger one. What do you get?
40. 40.Take 301. Reverse its digits and take the smaller number away from the bigger one. What do you get?

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