1089 Trick Worksheet

Maths tricks trick 7: The 1089 magic trick · Set 294 · 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 510: reverse and subtract, then reverse that answer and add. What do you get?
3. 3.792 + 297 =
4. 4.Take 861. Reverse its digits and take the smaller number away from the bigger one. What do you get?
5. 5.396 + 693 =
6. 6.Do the 1089 trick with 533: 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 2. What is that number?
8. 8.594 + 495 =
9. 9.In the 1089 trick, the subtraction gave a 3-digit number that starts with 8. What is that number?
10. 10.Take 803. Reverse its digits and take the smaller number away from the bigger one. What do you get?
11. 11.In the 1089 trick, the subtraction gave a 3-digit number that starts with 4. What is that number?
12. 12.693 + 396 =
13. 13.Do the 1089 trick with 759: reverse and subtract, then reverse that answer and add. What do you get?
14. 14.Do the 1089 trick with 870: reverse and subtract, then reverse that answer and add. What do you get?
15. 15.Do the 1089 trick with 895: reverse and subtract, then reverse that answer and add. What do you get?
16. 16.Take 990. Reverse its digits and take the smaller number away from the bigger one. What do you get?
17. 17.297 + 792 =
18. 18.Do the 1089 trick with 294: 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 6. What is that number?
20. 20.Do the 1089 trick with 741: reverse and subtract, then reverse that answer and add. What do you get?
21. 21.In the 1089 trick, the subtraction gave a 3-digit number that starts with 3. What is that number?
22. 22.Take 315. Reverse its digits and take the smaller number away from the bigger one. What do you get?
23. 23.In the 1089 trick, the subtraction gave a 3-digit number that starts with 7. What is that number?
24. 24.Take 427. Reverse its digits and take the smaller number away from the bigger one. What do you get?
25. 25.Do the 1089 trick with 730: reverse and subtract, then reverse that answer and add. What do you get?
26. 26.Take 590. Reverse its digits and take the smaller number away from the bigger one. What do you get?
27. 27.Take 890. Reverse its digits and take the smaller number away from the bigger one. What do you get?
28. 28.Take 400. Reverse its digits and take the smaller number away from the bigger one. What do you get?
29. 29.Take 961. Reverse its digits and take the smaller number away from the bigger one. What do you get?
30. 30.Do the 1089 trick with 935: reverse and subtract, then reverse that answer and add. What do you get?
31. 31.Take 940. Reverse its digits and take the smaller number away from the bigger one. What do you get?
32. 32.Take 922. Reverse its digits and take the smaller number away from the bigger one. What do you get?
33. 33.Do the 1089 trick with 964: reverse and subtract, then reverse that answer and add. What do you get?
34. 34.Take 845. Reverse its digits and take the smaller number away from the bigger one. What do you get?
35. 35.495 + 594 =
36. 36.Take 750. Reverse its digits and take the smaller number away from the bigger one. What do you get?
37. 37.891 + 198 =
38. 38.Do the 1089 trick with 649: reverse and subtract, then reverse that answer and add. What do you get?
39. 39.Take 136. Reverse its digits and take the smaller number away from the bigger one. What do you get?
40. 40.Take 843. 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