1089 Trick Worksheet

Maths tricks trick 7: The 1089 magic trick · Set 279 · 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. 1.297 + 792 =
2. 2.In the 1089 trick, the subtraction gave a 3-digit number that starts with 6. What is that number?
3. 3.Do the 1089 trick with 244: reverse and subtract, then reverse that answer and add. What do you get?
4. 4.Take 721. Reverse its digits and take the smaller number away from the bigger one. What do you get?
5. 5.693 + 396 =
6. 6.Do the 1089 trick with 148: reverse and subtract, then reverse that answer and add. What do you get?
7. 7.Take 751. Reverse its digits and take the smaller number away from the bigger one. What do you get?
8. 8.891 + 198 =
9. 9.Do the 1089 trick with 590: reverse and subtract, then reverse that answer and add. What do you get?
10. 10.In the 1089 trick, the subtraction gave a 3-digit number that starts with 7. What is that number?
11. 11.792 + 297 =
12. 12.Do the 1089 trick with 975: reverse and subtract, then reverse that answer and add. What do you get?
13. 13.Take 672. Reverse its digits and take the smaller number away from the bigger one. What do you get?
14. 14.Do the 1089 trick with 310: reverse and subtract, then reverse that answer and add. What do you get?
15. 15.Do the 1089 trick with 456: reverse and subtract, then reverse that answer and add. What do you get?
16. 16.594 + 495 =
17. 17.Take 950. Reverse its digits and take the smaller number away from the bigger one. What do you get?
18. 18.Take 280. Reverse its digits and take the smaller number away from the bigger one. What do you get?
19. 19.Take 570. Reverse its digits and take the smaller number away from the bigger one. What do you get?
20. 20.Take 507. Reverse its digits and take the smaller number away from the bigger one. What do you get?
21. 21.Do the 1089 trick with 157: reverse and subtract, then reverse that answer and add. What do you get?
22. 22.In the 1089 trick, the subtraction gave a 3-digit number that starts with 3. What is that number?
23. 23.Do the 1089 trick with 589: reverse and subtract, then reverse that answer and add. What do you get?
24. 24.Take 521. Reverse its digits and take the smaller number away from the bigger one. What do you get?
25. 25.Do the 1089 trick with 499: reverse and subtract, then reverse that answer and add. What do you get?
26. 26.495 + 594 =
27. 27.Do the 1089 trick with 402: reverse and subtract, then reverse that answer and add. What do you get?
28. 28.In the 1089 trick, the subtraction gave a 3-digit number that starts with 2. What is that number?
29. 29.Do the 1089 trick with 688: reverse and subtract, then reverse that answer and add. What do you get?
30. 30.Do the 1089 trick with 229: reverse and subtract, then reverse that answer and add. What do you get?
31. 31.In the 1089 trick, the subtraction gave a 3-digit number that starts with 4. What is that number?
32. 32.Take 986. Reverse its digits and take the smaller number away from the bigger one. What do you get?
33. 33.Do the 1089 trick with 805: reverse and subtract, then reverse that answer and add. What do you get?
34. 34.Take 725. Reverse its digits and take the smaller number away from the bigger one. What do you get?
35. 35.Do the 1089 trick with 129: reverse and subtract, then reverse that answer and add. What do you get?
36. 36.Do the 1089 trick with 117: reverse and subtract, then reverse that answer and add. What do you get?
37. 37.Do the 1089 trick with 834: reverse and subtract, then reverse that answer and add. What do you get?
38. 38.396 + 693 =
39. 39.Do the 1089 trick with 491: reverse and subtract, then reverse that answer and add. What do you get?
40. 40.Take 365. 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