1089 Trick Worksheet

Maths tricks trick 7: The 1089 magic trick · Set 670 · 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 792. Reverse its digits and take the smaller number away from the bigger one. What do you get?
2. 2.Take 920. Reverse its digits and take the smaller number away from the bigger one. What do you get?
3. 3.Take 279. Reverse its digits and take the smaller number away from the bigger one. What do you get?
4. 4.693 + 396 =
5. 5.Take 390. Reverse its digits and take the smaller number away from the bigger one. What do you get?
6. 6.Take 900. Reverse its digits and take the smaller number away from the bigger one. What do you get?
7. 7.In the 1089 trick, the subtraction gave a 3-digit number that starts with 6. 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.In the 1089 trick, the subtraction gave a 3-digit number that starts with 8. What is that number?
10. 10.Do the 1089 trick with 267: reverse and subtract, then reverse that answer and add. What do you get?
11. 11.In the 1089 trick, the subtraction gave a 3-digit number that starts with 1. What is that number?
12. 12.Take 701. Reverse its digits and take the smaller number away from the bigger one. What do you get?
13. 13.Do the 1089 trick with 931: reverse and subtract, then reverse that answer and add. What do you get?
14. 14.In the 1089 trick, the subtraction gave a 3-digit number that starts with 2. What is that number?
15. 15.Take 840. Reverse its digits and take the smaller number away from the bigger one. What do you get?
16. 16.Take 559. Reverse its digits and take the smaller number away from the bigger one. What do you get?
17. 17.Take 789. Reverse its digits and take the smaller number away from the bigger one. What do you get?
18. 18.In the 1089 trick, the subtraction gave a 3-digit number that starts with 5. What is that number?
19. 19.Take 790. Reverse its digits and take the smaller number away from the bigger one. What do you get?
20. 20.Do the 1089 trick with 630: reverse and subtract, then reverse that answer and add. What do you get?
21. 21.Do the 1089 trick with 550: reverse and subtract, then reverse that answer and add. What do you get?
22. 22.198 + 891 =
23. 23.891 + 198 =
24. 24.Do the 1089 trick with 991: reverse and subtract, then reverse that answer and add. What do you get?
25. 25.Do the 1089 trick with 850: reverse and subtract, then reverse that answer and add. What do you get?
26. 26.Do the 1089 trick with 477: reverse and subtract, then reverse that answer and add. What do you get?
27. 27.Take 991. Reverse its digits and take the smaller number away from the bigger one. What do you get?
28. 28.594 + 495 =
29. 29.Do the 1089 trick with 920: reverse and subtract, then reverse that answer and add. What do you get?
30. 30.Take 107. Reverse its digits and take the smaller number away from the bigger one. What do you get?
31. 31.495 + 594 =
32. 32.792 + 297 =
33. 33.297 + 792 =
34. 34.Take 600. Reverse its digits and take the smaller number away from the bigger one. What do you get?
35. 35.In the 1089 trick, the subtraction gave a 3-digit number that starts with 3. What is that number?
36. 36.Take 105. Reverse its digits and take the smaller number away from the bigger one. What do you get?
37. 37.Take 771. Reverse its digits and take the smaller number away from the bigger one. What do you get?
38. 38.396 + 693 =
39. 39.Do the 1089 trick with 229: reverse and subtract, then reverse that answer and add. What do you get?
40. 40.Do the 1089 trick with 902: 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