1089 Trick Worksheet

Maths tricks trick 7: The 1089 magic trick · Set 121 · 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. 1.297 + 792 =
2. 2.Do the 1089 trick with 409: reverse and subtract, then reverse that answer and add. What do you get?
3. 3.Do the 1089 trick with 781: reverse and subtract, then reverse that answer and add. What do you get?
4. 4.Take 971. Reverse its digits and take the smaller number away from the bigger one. What do you get?
5. 5.Take 820. Reverse its digits and take the smaller number away from the bigger one. What do you get?
6. 6.Do the 1089 trick with 186: reverse and subtract, then reverse that answer and add. What do you get?
7. 7.198 + 891 =
8. 8.Do the 1089 trick with 169: 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 6. What is that number?
10. 10.In the 1089 trick, the subtraction gave a 3-digit number that starts with 4. What is that number?
11. 11.Do the 1089 trick with 683: reverse and subtract, then reverse that answer and add. What do you get?
12. 12.Do the 1089 trick with 922: reverse and subtract, then reverse that answer and add. What do you get?
13. 13.Take 850. Reverse its digits and take the smaller number away from the bigger one. What do you get?
14. 14.Do the 1089 trick with 800: reverse and subtract, then reverse that answer and add. What do you get?
15. 15.Take 950. Reverse its digits and take the smaller number away from the bigger one. What do you get?
16. 16.Do the 1089 trick with 960: reverse and subtract, then reverse that answer and add. What do you get?
17. 17.693 + 396 =
18. 18.Take 882. 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 8. What is that number?
20. 20.396 + 693 =
21. 21.Do the 1089 trick with 720: reverse and subtract, then reverse that answer and add. What do you get?
22. 22.Do the 1089 trick with 810: reverse and subtract, then reverse that answer and add. What do you get?
23. 23.Do the 1089 trick with 109: reverse and subtract, then reverse that answer and add. What do you get?
24. 24.In the 1089 trick, the subtraction gave a 3-digit number that starts with 5. What is that number?
25. 25.792 + 297 =
26. 26.In the 1089 trick, the subtraction gave a 3-digit number that starts with 7. What is that number?
27. 27.Take 582. Reverse its digits and take the smaller number away from the bigger one. What do you get?
28. 28.Do the 1089 trick with 602: reverse and subtract, then reverse that answer and add. What do you get?
29. 29.Take 783. 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 3. What is that number?
31. 31.In the 1089 trick, the subtraction gave a 3-digit number that starts with 1. What is that number?
32. 32.Take 114. Reverse its digits and take the smaller number away from the bigger one. What do you get?
33. 33.In the 1089 trick, the subtraction gave a 3-digit number that starts with 2. What is that number?
34. 34.Take 300. Reverse its digits and take the smaller number away from the bigger one. What do you get?
35. 35.Take 960. Reverse its digits and take the smaller number away from the bigger one. What do you get?
36. 36.Do the 1089 trick with 950: reverse and subtract, then reverse that answer and add. What do you get?
37. 37.Take 308. Reverse its digits and take the smaller number away from the bigger one. What do you get?
38. 38.Do the 1089 trick with 971: reverse and subtract, then reverse that answer and add. What do you get?
39. 39.Take 500. Reverse its digits and take the smaller number away from the bigger one. What do you get?
40. 40.Do the 1089 trick with 783: 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