1089 Trick Worksheet

Maths tricks trick 7: The 1089 magic trick · Set 922 · 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.In the 1089 trick, the subtraction gave a 3-digit number that starts with 4. What is that number?
2. 2.792 + 297 =
3. 3.Take 610. Reverse its digits and take the smaller number away from the bigger one. What do you get?
4. 4.In the 1089 trick, the subtraction gave a 3-digit number that starts with 8. What is that number?
5. 5.Do the 1089 trick with 930: reverse and subtract, then reverse that answer and add. What do you get?
6. 6.693 + 396 =
7. 7.198 + 891 =
8. 8.In the 1089 trick, the subtraction gave a 3-digit number that starts with 3. What is that number?
9. 9.In the 1089 trick, the subtraction gave a 3-digit number that starts with 2. What is that number?
10. 10.In the 1089 trick, the subtraction gave a 3-digit number that starts with 7. What is that number?
11. 11.Take 843. Reverse its digits and take the smaller number away from the bigger one. What do you get?
12. 12.Do the 1089 trick with 426: reverse and subtract, then reverse that answer and add. What do you get?
13. 13.In the 1089 trick, the subtraction gave a 3-digit number that starts with 6. What is that number?
14. 14.Do the 1089 trick with 230: reverse and subtract, then reverse that answer and add. What do you get?
15. 15.Take 846. Reverse its digits and take the smaller number away from the bigger one. What do you get?
16. 16.In the 1089 trick, the subtraction gave a 3-digit number that starts with 5. What is that number?
17. 17.Take 910. Reverse its digits and take the smaller number away from the bigger one. What do you get?
18. 18.Do the 1089 trick with 361: reverse and subtract, then reverse that answer and add. What do you get?
19. 19.Do the 1089 trick with 552: reverse and subtract, then reverse that answer and add. What do you get?
20. 20.Take 117. Reverse its digits and take the smaller number away from the bigger one. What do you get?
21. 21.Take 974. Reverse its digits and take the smaller number away from the bigger one. What do you get?
22. 22.Do the 1089 trick with 573: reverse and subtract, then reverse that answer and add. What do you get?
23. 23.297 + 792 =
24. 24.Take 419. Reverse its digits and take the smaller number away from the bigger one. What do you get?
25. 25.Do the 1089 trick with 681: reverse and subtract, then reverse that answer and add. What do you get?
26. 26.594 + 495 =
27. 27.Take 169. Reverse its digits and take the smaller number away from the bigger one. What do you get?
28. 28.495 + 594 =
29. 29.Do the 1089 trick with 910: reverse and subtract, then reverse that answer and add. What do you get?
30. 30.Do the 1089 trick with 836: reverse and subtract, then reverse that answer and add. What do you get?
31. 31.Do the 1089 trick with 764: reverse and subtract, then reverse that answer and add. What do you get?
32. 32.Do the 1089 trick with 700: reverse and subtract, then reverse that answer and add. What do you get?
33. 33.Take 901. Reverse its digits and take the smaller number away from the bigger one. What do you get?
34. 34.Do the 1089 trick with 664: reverse and subtract, then reverse that answer and add. What do you get?
35. 35.Take 270. Reverse its digits and take the smaller number away from the bigger one. What do you get?
36. 36.Take 930. Reverse its digits and take the smaller number away from the bigger one. What do you get?
37. 37.Do the 1089 trick with 943: reverse and subtract, then reverse that answer and add. What do you get?
38. 38.Take 986. Reverse its digits and take the smaller number away from the bigger one. What do you get?
39. 39.Take 126. Reverse its digits and take the smaller number away from the bigger one. What do you get?
40. 40.Do the 1089 trick with 620: reverse and subtract, then reverse that answer and add. What do you get?

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