1089 Trick Worksheet

Maths tricks trick 7: The 1089 magic trick · Set 890 · 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. 1.693 + 396 =
2. 2.In the 1089 trick, the subtraction gave a 3-digit number that starts with 3. What is that number?
3. 3.In the 1089 trick, the subtraction gave a 3-digit number that starts with 7. What is that number?
4. 4.Do the 1089 trick with 420: reverse and subtract, then reverse that answer and add. What do you get?
5. 5.Take 199. Reverse its digits and take the smaller number away from the bigger one. What do you get?
6. 6.Do the 1089 trick with 960: reverse and subtract, then reverse that answer and add. What do you get?
7. 7.792 + 297 =
8. 8.Do the 1089 trick with 103: reverse and subtract, then reverse that answer and add. What do you get?
9. 9.In the 1089 trick, the subtraction gave a 3-digit number that starts with 2. What is that number?
10. 10.Do the 1089 trick with 721: reverse and subtract, then reverse that answer and add. What do you get?
11. 11.594 + 495 =
12. 12.495 + 594 =
13. 13.Take 880. Reverse its digits and take the smaller number away from the bigger one. What do you get?
14. 14.Take 289. Reverse its digits and take the smaller number away from the bigger one. What do you get?
15. 15.Take 480. Reverse its digits and take the smaller number away from the bigger one. What do you get?
16. 16.Take 955. Reverse its digits and take the smaller number away from the bigger one. What do you get?
17. 17.Do the 1089 trick with 912: reverse and subtract, then reverse that answer and add. What do you get?
18. 18.Take 981. Reverse its digits and take the smaller number away from the bigger one. What do you get?
19. 19.In the 1089 trick, the subtraction gave a 3-digit number that starts with 4. What is that number?
20. 20.396 + 693 =
21. 21.Take 461. Reverse its digits and take the smaller number away from the bigger one. What do you get?
22. 22.Take 960. Reverse its digits and take the smaller number away from the bigger one. What do you get?
23. 23.Take 723. Reverse its digits and take the smaller number away from the bigger one. What do you get?
24. 24.Take 520. Reverse its digits and take the smaller number away from the bigger one. What do you get?
25. 25.Do the 1089 trick with 540: reverse and subtract, then reverse that answer and add. What do you get?
26. 26.297 + 792 =
27. 27.In the 1089 trick, the subtraction gave a 3-digit number that starts with 5. What is that number?
28. 28.Do the 1089 trick with 852: reverse and subtract, then reverse that answer and add. What do you get?
29. 29.Take 770. Reverse its digits and take the smaller number away from the bigger one. What do you get?
30. 30.In the 1089 trick, the subtraction gave a 3-digit number that starts with 6. What is that number?
31. 31.Do the 1089 trick with 820: reverse and subtract, then reverse that answer and add. What do you get?
32. 32.Take 548. Reverse its digits and take the smaller number away from the bigger one. What do you get?
33. 33.Do the 1089 trick with 851: reverse and subtract, then reverse that answer and add. What do you get?
34. 34.Take 330. Reverse its digits and take the smaller number away from the bigger one. What do you get?
35. 35.Take 317. Reverse its digits and take the smaller number away from the bigger one. What do you get?
36. 36.Take 930. 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 8. What is that number?
38. 38.Do the 1089 trick with 910: reverse and subtract, then reverse that answer and add. What do you get?
39. 39.891 + 198 =
40. 40.Take 587. 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