1089 Trick Worksheet

Maths tricks trick 7: The 1089 magic trick · Set 713 · 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 930. Reverse its digits and take the smaller number away from the bigger one. What do you get?
2. 2.594 + 495 =
3. 3.Take 690. Reverse its digits and take the smaller number away from the bigger one. What do you get?
4. 4.In the 1089 trick, the subtraction gave a 3-digit number that starts with 6. What is that number?
5. 5.Take 990. Reverse its digits and take the smaller number away from the bigger one. What do you get?
6. 6.396 + 693 =
7. 7.Take 588. Reverse its digits and take the smaller number away from the bigger one. What do you get?
8. 8.Take 674. Reverse its digits and take the smaller number away from the bigger one. What do you get?
9. 9.Do the 1089 trick with 854: reverse and subtract, then reverse that answer and add. What do you get?
10. 10.Do the 1089 trick with 497: reverse and subtract, then reverse that answer and add. What do you get?
11. 11.297 + 792 =
12. 12.198 + 891 =
13. 13.Do the 1089 trick with 610: reverse and subtract, then reverse that answer and add. What do you get?
14. 14.693 + 396 =
15. 15.In the 1089 trick, the subtraction gave a 3-digit number that starts with 4. What is that number?
16. 16.495 + 594 =
17. 17.Do the 1089 trick with 732: reverse and subtract, then reverse that answer and add. What do you get?
18. 18.Do the 1089 trick with 249: 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 7. What is that number?
20. 20.Take 980. Reverse its digits and take the smaller number away from the bigger one. What do you get?
21. 21.Take 960. Reverse its digits and take the smaller number away from the bigger one. What do you get?
22. 22.Take 950. Reverse its digits and take the smaller number away from the bigger one. What do you get?
23. 23.Take 850. Reverse its digits and take the smaller number away from the bigger one. What do you get?
24. 24.Do the 1089 trick with 452: reverse and subtract, then reverse that answer and add. What do you get?
25. 25.Take 732. Reverse its digits and take the smaller number away from the bigger one. What do you get?
26. 26.Do the 1089 trick with 390: reverse and subtract, then reverse that answer and add. What do you get?
27. 27.891 + 198 =
28. 28.Take 991. Reverse its digits and take the smaller number away from the bigger one. What do you get?
29. 29.Do the 1089 trick with 900: reverse and subtract, then reverse that answer and add. What do you get?
30. 30.Take 420. Reverse its digits and take the smaller number away from the bigger one. What do you get?
31. 31.Take 750. Reverse its digits and take the smaller number away from the bigger one. What do you get?
32. 32.Do the 1089 trick with 125: reverse and subtract, then reverse that answer and add. What do you get?
33. 33.Do the 1089 trick with 950: reverse and subtract, then reverse that answer and add. What do you get?
34. 34.Do the 1089 trick with 600: reverse and subtract, then reverse that answer and add. What do you get?
35. 35.Do the 1089 trick with 143: reverse and subtract, then reverse that answer and add. What do you get?
36. 36.Take 826. Reverse its digits and take the smaller number away from the bigger one. What do you get?
37. 37.In the 1089 trick, the subtraction gave a 3-digit number that starts with 5. What is that number?
38. 38.Do the 1089 trick with 501: reverse and subtract, then reverse that answer and add. What do you get?
39. 39.Take 397. Reverse its digits and take the smaller number away from the bigger one. What do you get?
40. 40.Do the 1089 trick with 420: 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