1089 Trick Worksheet

Maths tricks trick 7: The 1089 magic trick · Set 835 · 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 970. Reverse its digits and take the smaller number away from the bigger one. What do you get?
2. 2.Take 830. Reverse its digits and take the smaller number away from the bigger one. What do you get?
3. 3.Do the 1089 trick with 559: reverse and subtract, then reverse that answer and add. What do you get?
4. 4.198 + 891 =
5. 5.In the 1089 trick, the subtraction gave a 3-digit number that starts with 8. What is that number?
6. 6.Do the 1089 trick with 481: reverse and subtract, then reverse that answer and add. What do you get?
7. 7.Do the 1089 trick with 355: reverse and subtract, then reverse that answer and add. What do you get?
8. 8.Do the 1089 trick with 103: reverse and subtract, then reverse that answer and add. What do you get?
9. 9.891 + 198 =
10. 10.693 + 396 =
11. 11.Take 842. Reverse its digits and take the smaller number away from the bigger one. What do you get?
12. 12.Take 890. Reverse its digits and take the smaller number away from the bigger one. What do you get?
13. 13.Take 330. Reverse its digits and take the smaller number away from the bigger one. What do you get?
14. 14.Take 340. Reverse its digits and take the smaller number away from the bigger one. What do you get?
15. 15.Do the 1089 trick with 871: reverse and subtract, then reverse that answer and add. What do you get?
16. 16.Do the 1089 trick with 930: reverse and subtract, then reverse that answer and add. What do you get?
17. 17.Take 816. Reverse its digits and take the smaller number away from the bigger one. What do you get?
18. 18.Do the 1089 trick with 316: reverse and subtract, then reverse that answer and add. What do you get?
19. 19.Do the 1089 trick with 138: reverse and subtract, then reverse that answer and add. What do you get?
20. 20.Do the 1089 trick with 966: reverse and subtract, then reverse that answer and add. What do you get?
21. 21.Take 519. Reverse its digits and take the smaller number away from the bigger one. What do you get?
22. 22.In the 1089 trick, the subtraction gave a 3-digit number that starts with 2. What is that number?
23. 23.Take 922. Reverse its digits and take the smaller number away from the bigger one. What do you get?
24. 24.In the 1089 trick, the subtraction gave a 3-digit number that starts with 4. What is that number?
25. 25.Take 955. Reverse its digits and take the smaller number away from the bigger one. What do you get?
26. 26.Do the 1089 trick with 199: reverse and subtract, then reverse that answer and add. What do you get?
27. 27.Take 581. Reverse its digits and take the smaller number away from the bigger one. What do you get?
28. 28.In the 1089 trick, the subtraction gave a 3-digit number that starts with 6. What is that number?
29. 29.Take 218. Reverse its digits and take the smaller number away from the bigger one. What do you get?
30. 30.Take 993. 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 1. What is that number?
32. 32.594 + 495 =
33. 33.297 + 792 =
34. 34.Take 461. Reverse its digits and take the smaller number away from the bigger one. What do you get?
35. 35.Do the 1089 trick with 147: reverse and subtract, then reverse that answer and add. What do you get?
36. 36.Do the 1089 trick with 422: reverse and subtract, then reverse that answer and add. What do you get?
37. 37.Do the 1089 trick with 791: reverse and subtract, then reverse that answer and add. What do you get?
38. 38.Do the 1089 trick with 300: reverse and subtract, then reverse that answer and add. What do you get?
39. 39.Take 812. Reverse its digits and take the smaller number away from the bigger one. What do you get?
40. 40.792 + 297 =

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