1089 Trick Worksheet

Maths tricks trick 7: The 1089 magic trick · Set 727 · 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. 1.198 + 891 =
2. 2.Do the 1089 trick with 993: reverse and subtract, then reverse that answer and add. What do you get?
3. 3.Take 380. Reverse its digits and take the smaller number away from the bigger one. What do you get?
4. 4.Do the 1089 trick with 902: reverse and subtract, then reverse that answer and add. What do you get?
5. 5.Do the 1089 trick with 511: 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 3. What is that number?
7. 7.495 + 594 =
8. 8.Do the 1089 trick with 745: reverse and subtract, then reverse that answer and add. What do you get?
9. 9.Take 925. Reverse its digits and take the smaller number away from the bigger one. What do you get?
10. 10.297 + 792 =
11. 11.891 + 198 =
12. 12.Do the 1089 trick with 189: reverse and subtract, then reverse that answer and add. What do you get?
13. 13.Take 477. Reverse its digits and take the smaller number away from the bigger one. What do you get?
14. 14.594 + 495 =
15. 15.Do the 1089 trick with 942: reverse and subtract, then reverse that answer and add. What do you get?
16. 16.Do the 1089 trick with 905: reverse and subtract, then reverse that answer and add. What do you get?
17. 17.In the 1089 trick, the subtraction gave a 3-digit number that starts with 2. What is that number?
18. 18.Take 832. Reverse its digits and take the smaller number away from the bigger one. What do you get?
19. 19.Do the 1089 trick with 379: reverse and subtract, then reverse that answer and add. What do you get?
20. 20.Do the 1089 trick with 950: reverse and subtract, then reverse that answer and add. What do you get?
21. 21.Do the 1089 trick with 991: reverse and subtract, then reverse that answer and add. What do you get?
22. 22.In the 1089 trick, the subtraction gave a 3-digit number that starts with 4. What is that number?
23. 23.Take 690. Reverse its digits and take the smaller number away from the bigger one. What do you get?
24. 24.792 + 297 =
25. 25.Do the 1089 trick with 489: reverse and subtract, then reverse that answer and add. What do you get?
26. 26.Do the 1089 trick with 672: reverse and subtract, then reverse that answer and add. What do you get?
27. 27.In the 1089 trick, the subtraction gave a 3-digit number that starts with 5. What is that number?
28. 28.Take 115. Reverse its digits and take the smaller number away from the bigger one. What do you get?
29. 29.Take 217. Reverse its digits and take the smaller number away from the bigger one. What do you get?
30. 30.Take 850. Reverse its digits and take the smaller number away from the bigger one. What do you get?
31. 31.Do the 1089 trick with 420: reverse and subtract, then reverse that answer and add. What do you get?
32. 32.In the 1089 trick, the subtraction gave a 3-digit number that starts with 6. What is that number?
33. 33.Take 960. Reverse its digits and take the smaller number away from the bigger one. What do you get?
34. 34.Take 961. Reverse its digits and take the smaller number away from the bigger one. What do you get?
35. 35.396 + 693 =
36. 36.In the 1089 trick, the subtraction gave a 3-digit number that starts with 8. What is that number?
37. 37.Take 430. Reverse its digits and take the smaller number away from the bigger one. What do you get?
38. 38.693 + 396 =
39. 39.Do the 1089 trick with 123: reverse and subtract, then reverse that answer and add. What do you get?
40. 40.Do the 1089 trick with 570: reverse and subtract, then reverse that answer and add. What do you get?

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