1089 Trick Worksheet

Maths tricks trick 7: The 1089 magic trick · Set 230 · 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 820: reverse and subtract, then reverse that answer and add. What do you get?
2. 2.792 + 297 =
3. 3.198 + 891 =
4. 4.Do the 1089 trick with 460: reverse and subtract, then reverse that answer and add. What do you get?
5. 5.In the 1089 trick, the subtraction gave a 3-digit number that starts with 6. What is that number?
6. 6.Do the 1089 trick with 651: reverse and subtract, then reverse that answer and add. What do you get?
7. 7.In the 1089 trick, the subtraction gave a 3-digit number that starts with 4. What is that number?
8. 8.Do the 1089 trick with 512: reverse and subtract, then reverse that answer and add. What do you get?
9. 9.396 + 693 =
10. 10.Do the 1089 trick with 844: reverse and subtract, then reverse that answer and add. What do you get?
11. 11.Take 590. Reverse its digits and take the smaller number away from the bigger one. What do you get?
12. 12.Take 419. Reverse its digits and take the smaller number away from the bigger one. What do you get?
13. 13.Take 990. Reverse its digits and take the smaller number away from the bigger one. What do you get?
14. 14.495 + 594 =
15. 15.Take 390. Reverse its digits and take the smaller number away from the bigger one. What do you get?
16. 16.Do the 1089 trick with 971: reverse and subtract, then reverse that answer and add. What do you get?
17. 17.Take 780. Reverse its digits and take the smaller number away from the bigger one. What do you get?
18. 18.Take 127. Reverse its digits and take the smaller number away from the bigger one. What do you get?
19. 19.Take 188. Reverse its digits and take the smaller number away from the bigger one. What do you get?
20. 20.Take 126. Reverse its digits and take the smaller number away from the bigger one. What do you get?
21. 21.Take 398. Reverse its digits and take the smaller number away from the bigger one. What do you get?
22. 22.Take 659. Reverse its digits and take the smaller number away from the bigger one. What do you get?
23. 23.Take 820. Reverse its digits and take the smaller number away from the bigger one. What do you get?
24. 24.Take 901. Reverse its digits and take the smaller number away from the bigger one. What do you get?
25. 25.297 + 792 =
26. 26.Do the 1089 trick with 800: 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 7. What is that number?
28. 28.Take 771. Reverse its digits and take the smaller number away from the bigger one. What do you get?
29. 29.Do the 1089 trick with 963: reverse and subtract, then reverse that answer and add. What do you get?
30. 30.Take 734. Reverse its digits and take the smaller number away from the bigger one. What do you get?
31. 31.Take 900. Reverse its digits and take the smaller number away from the bigger one. What do you get?
32. 32.594 + 495 =
33. 33.Take 693. Reverse its digits and take the smaller number away from the bigger one. What do you get?
34. 34.Do the 1089 trick with 426: reverse and subtract, then reverse that answer and add. What do you get?
35. 35.Take 551. Reverse its digits and take the smaller number away from the bigger one. What do you get?
36. 36.Do the 1089 trick with 440: reverse and subtract, then reverse that answer and add. What do you get?
37. 37.693 + 396 =
38. 38.Do the 1089 trick with 901: reverse and subtract, then reverse that answer and add. What do you get?
39. 39.Take 803. Reverse its digits and take the smaller number away from the bigger one. What do you get?
40. 40.Take 200. 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