1089 Trick Worksheet

Maths tricks trick 7: The 1089 magic trick · Set 687 · 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.Do the 1089 trick with 870: reverse and subtract, then reverse that answer and add. What do you get?
2. 2.In the 1089 trick, the subtraction gave a 3-digit number that starts with 4. What is that number?
3. 3.396 + 693 =
4. 4.In the 1089 trick, the subtraction gave a 3-digit number that starts with 8. What is that number?
5. 5.Take 902. 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 1. What is that number?
7. 7.In the 1089 trick, the subtraction gave a 3-digit number that starts with 7. What is that number?
8. 8.Take 456. Reverse its digits and take the smaller number away from the bigger one. What do you get?
9. 9.Do the 1089 trick with 974: reverse and subtract, then reverse that answer and add. What do you get?
10. 10.Take 609. Reverse its digits and take the smaller number away from the bigger one. What do you get?
11. 11.Take 368. Reverse its digits and take the smaller number away from the bigger one. What do you get?
12. 12.Do the 1089 trick with 139: reverse and subtract, then reverse that answer and add. What do you get?
13. 13.Take 471. Reverse its digits and take the smaller number away from the bigger one. What do you get?
14. 14.Do the 1089 trick with 602: reverse and subtract, then reverse that answer and add. What do you get?
15. 15.891 + 198 =
16. 16.In the 1089 trick, the subtraction gave a 3-digit number that starts with 3. What is that number?
17. 17.792 + 297 =
18. 18.Take 599. Reverse its digits and take the smaller number away from the bigger one. What do you get?
19. 19.Take 870. Reverse its digits and take the smaller number away from the bigger one. What do you get?
20. 20.Take 236. Reverse its digits and take the smaller number away from the bigger one. What do you get?
21. 21.198 + 891 =
22. 22.Take 367. Reverse its digits and take the smaller number away from the bigger one. What do you get?
23. 23.Take 329. Reverse its digits and take the smaller number away from the bigger one. 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.Do the 1089 trick with 327: reverse and subtract, then reverse that answer and add. What do you get?
26. 26.693 + 396 =
27. 27.Do the 1089 trick with 950: reverse and subtract, then reverse that answer and add. What do you get?
28. 28.594 + 495 =
29. 29.495 + 594 =
30. 30.Take 954. Reverse its digits and take the smaller number away from the bigger one. What do you get?
31. 31.Take 690. Reverse its digits and take the smaller number away from the bigger one. What do you get?
32. 32.Take 422. Reverse its digits and take the smaller number away from the bigger one. What do you get?
33. 33.Take 228. Reverse its digits and take the smaller number away from the bigger one. What do you get?
34. 34.Take 901. 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 960: reverse and subtract, then reverse that answer and add. What do you get?
37. 37.Do the 1089 trick with 985: reverse and subtract, then reverse that answer and add. What do you get?
38. 38.Take 890. Reverse its digits and take the smaller number away from the bigger one. What do you get?
39. 39.Do the 1089 trick with 730: reverse and subtract, then reverse that answer and add. What do you get?
40. 40.Do the 1089 trick with 391: 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