1089 Trick Worksheet

Maths tricks trick 7: The 1089 magic trick · Set 21 · 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 398. Reverse its digits and take the smaller number away from the bigger one. What do you get?
2. 2.Do the 1089 trick with 461: reverse and subtract, then reverse that answer and add. What do you get?
3. 3.198 + 891 =
4. 4.Take 187. Reverse its digits and take the smaller number away from the bigger one. What do you get?
5. 5.Take 200. Reverse its digits and take the smaller number away from the bigger one. What do you get?
6. 6.Take 915. Reverse its digits and take the smaller number away from the bigger one. What do you get?
7. 7.891 + 198 =
8. 8.In the 1089 trick, the subtraction gave a 3-digit number that starts with 5. What is that number?
9. 9.495 + 594 =
10. 10.Take 179. Reverse its digits and take the smaller number away from the bigger one. What do you get?
11. 11.Take 195. Reverse its digits and take the smaller number away from the bigger one. What do you get?
12. 12.Take 816. Reverse its digits and take the smaller number away from the bigger one. What do you get?
13. 13.In the 1089 trick, the subtraction gave a 3-digit number that starts with 2. What is that number?
14. 14.792 + 297 =
15. 15.Take 913. Reverse its digits and take the smaller number away from the bigger one. What do you get?
16. 16.594 + 495 =
17. 17.Take 284. Reverse its digits and take the smaller number away from the bigger one. What do you get?
18. 18.693 + 396 =
19. 19.In the 1089 trick, the subtraction gave a 3-digit number that starts with 8. What is that number?
20. 20.297 + 792 =
21. 21.Take 315. Reverse its digits and take the smaller number away from the bigger one. What do you get?
22. 22.Take 901. Reverse its digits and take the smaller number away from the bigger one. What do you get?
23. 23.Take 357. Reverse its digits and take the smaller number away from the bigger one. What do you get?
24. 24.Do the 1089 trick with 137: reverse and subtract, then reverse that answer and add. What do you get?
25. 25.396 + 693 =
26. 26.Do the 1089 trick with 714: reverse and subtract, then reverse that answer and add. What do you get?
27. 27.Take 219. Reverse its digits and take the smaller number away from the bigger one. What do you get?
28. 28.In the 1089 trick, the subtraction gave a 3-digit number that starts with 3. What is that number?
29. 29.Take 835. 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 4. What is that number?
31. 31.Take 924. Reverse its digits and take the smaller number away from the bigger one. What do you get?
32. 32.Take 309. Reverse its digits and take the smaller number away from the bigger one. What do you get?
33. 33.Take 970. Reverse its digits and take the smaller number away from the bigger one. What do you get?
34. 34.Take 914. Reverse its digits and take the smaller number away from the bigger one. What do you get?
35. 35.Do the 1089 trick with 488: reverse and subtract, then reverse that answer and add. What do you get?
36. 36.Take 900. Reverse its digits and take the smaller number away from the bigger one. What do you get?
37. 37.Take 361. Reverse its digits and take the smaller number away from the bigger one. What do you get?
38. 38.Do the 1089 trick with 599: reverse and subtract, then reverse that answer and add. What do you get?
39. 39.In the 1089 trick, the subtraction gave a 3-digit number that starts with 6. What is that number?
40. 40.Take 670. 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