1089 Trick Worksheet

Maths tricks trick 7: The 1089 magic trick · Set 979 · 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.Do the 1089 trick with 411: reverse and subtract, then reverse that answer and add. What do you get?
2. 2.In the 1089 trick, the subtraction gave a 3-digit number that starts with 8. What is that number?
3. 3.In the 1089 trick, the subtraction gave a 3-digit number that starts with 7. What is that number?
4. 4.In the 1089 trick, the subtraction gave a 3-digit number that starts with 2. What is that number?
5. 5.Take 910. Reverse its digits and take the smaller number away from the bigger one. What do you get?
6. 6.297 + 792 =
7. 7.891 + 198 =
8. 8.Do the 1089 trick with 900: reverse and subtract, then reverse that answer and add. What do you get?
9. 9.198 + 891 =
10. 10.Do the 1089 trick with 810: reverse and subtract, then reverse that answer and add. What do you get?
11. 11.Do the 1089 trick with 270: reverse and subtract, then reverse that answer and add. What do you get?
12. 12.Take 960. Reverse its digits and take the smaller number away from the bigger one. What do you get?
13. 13.Do the 1089 trick with 295: reverse and subtract, then reverse that answer and add. What do you get?
14. 14.In the 1089 trick, the subtraction gave a 3-digit number that starts with 1. What is that number?
15. 15.Take 380. Reverse its digits and take the smaller number away from the bigger one. What do you get?
16. 16.Take 880. Reverse its digits and take the smaller number away from the bigger one. What do you get?
17. 17.Do the 1089 trick with 668: reverse and subtract, then reverse that answer and add. What do you get?
18. 18.Take 780. Reverse its digits and take the smaller number away from the bigger one. What do you get?
19. 19.594 + 495 =
20. 20.Take 219. Reverse its digits and take the smaller number away from the bigger one. What do you get?
21. 21.693 + 396 =
22. 22.Take 650. Reverse its digits and take the smaller number away from the bigger one. What do you get?
23. 23.Do the 1089 trick with 681: reverse and subtract, then reverse that answer and add. What do you get?
24. 24.396 + 693 =
25. 25.Take 802. Reverse its digits and take the smaller number away from the bigger one. What do you get?
26. 26.792 + 297 =
27. 27.Take 810. Reverse its digits and take the smaller number away from the bigger one. What do you get?
28. 28.Do the 1089 trick with 821: reverse and subtract, then reverse that answer and add. What do you get?
29. 29.Take 820. Reverse its digits and take the smaller number away from the bigger one. What do you get?
30. 30.Take 630. Reverse its digits and take the smaller number away from the bigger one. What do you get?
31. 31.Do the 1089 trick with 942: reverse and subtract, then reverse that answer and add. What do you get?
32. 32.Take 200. Reverse its digits and take the smaller number away from the bigger one. What do you get?
33. 33.Do the 1089 trick with 114: reverse and subtract, then reverse that answer and add. What do you get?
34. 34.Do the 1089 trick with 300: reverse and subtract, then reverse that answer and add. What do you get?
35. 35.Take 350. Reverse its digits and take the smaller number away from the bigger one. What do you get?
36. 36.Take 965. Reverse its digits and take the smaller number away from the bigger one. What do you get?
37. 37.Do the 1089 trick with 940: reverse and subtract, then reverse that answer and add. What do you get?
38. 38.Do the 1089 trick with 800: reverse and subtract, then reverse that answer and add. What do you get?
39. 39.Take 846. Reverse its digits and take the smaller number away from the bigger one. What do you get?
40. 40.Take 890. Reverse its digits and take the smaller number away from the bigger one. What do you get?

Free maths tricks lessons, practice and worksheets at talentjr.in/maths-tricks