1089 Trick Worksheet

Maths tricks trick 7: The 1089 magic trick · Set 426 · 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. 1.891 + 198 =
2. 2.Take 810. Reverse its digits and take the smaller number away from the bigger one. What do you get?
3. 3.Take 428. Reverse its digits and take the smaller number away from the bigger one. What do you get?
4. 4.Do the 1089 trick with 971: reverse and subtract, then reverse that answer and add. What do you get?
5. 5.Take 910. Reverse its digits and take the smaller number away from the bigger one. What do you get?
6. 6.In the 1089 trick, the subtraction gave a 3-digit number that starts with 7. What is that number?
7. 7.In the 1089 trick, the subtraction gave a 3-digit number that starts with 8. What is that number?
8. 8.In the 1089 trick, the subtraction gave a 3-digit number that starts with 4. What is that number?
9. 9.Do the 1089 trick with 341: reverse and subtract, then reverse that answer and add. What do you get?
10. 10.396 + 693 =
11. 11.Do the 1089 trick with 820: reverse and subtract, then reverse that answer and add. What do you get?
12. 12.In the 1089 trick, the subtraction gave a 3-digit number that starts with 5. What is that number?
13. 13.In the 1089 trick, the subtraction gave a 3-digit number that starts with 2. What is that number?
14. 14.Take 366. Reverse its digits and take the smaller number away from the bigger one. What do you get?
15. 15.Do the 1089 trick with 226: reverse and subtract, then reverse that answer and add. What do you get?
16. 16.Take 542. Reverse its digits and take the smaller number away from the bigger one. What do you get?
17. 17.Do the 1089 trick with 890: reverse and subtract, then reverse that answer and add. What do you get?
18. 18.Take 830. Reverse its digits and take the smaller number away from the bigger one. What do you get?
19. 19.Take 278. Reverse its digits and take the smaller number away from the bigger one. What do you get?
20. 20.In the 1089 trick, the subtraction gave a 3-digit number that starts with 3. What is that number?
21. 21.In the 1089 trick, the subtraction gave a 3-digit number that starts with 6. What is that number?
22. 22.Do the 1089 trick with 148: reverse and subtract, then reverse that answer and add. What do you get?
23. 23.Take 489. Reverse its digits and take the smaller number away from the bigger one. What do you get?
24. 24.Take 693. Reverse its digits and take the smaller number away from the bigger one. What do you get?
25. 25.In the 1089 trick, the subtraction gave a 3-digit number that starts with 1. What is that number?
26. 26.Do the 1089 trick with 630: reverse and subtract, then reverse that answer and add. What do you get?
27. 27.Do the 1089 trick with 189: reverse and subtract, then reverse that answer and add. What do you get?
28. 28.693 + 396 =
29. 29.594 + 495 =
30. 30.495 + 594 =
31. 31.Take 789. Reverse its digits and take the smaller number away from the bigger one. What do you get?
32. 32.Take 670. Reverse its digits and take the smaller number away from the bigger one. What do you get?
33. 33.Do the 1089 trick with 219: reverse and subtract, then reverse that answer and add. What do you get?
34. 34.Take 280. Reverse its digits and take the smaller number away from the bigger one. What do you get?
35. 35.297 + 792 =
36. 36.Do the 1089 trick with 390: reverse and subtract, then reverse that answer and add. What do you get?
37. 37.Take 521. Reverse its digits and take the smaller number away from the bigger one. What do you get?
38. 38.Take 501. Reverse its digits and take the smaller number away from the bigger one. What do you get?
39. 39.Do the 1089 trick with 982: reverse and subtract, then reverse that answer and add. What do you get?
40. 40.Take 962. 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