1089 Trick Worksheet

Maths tricks trick 7: The 1089 magic trick · Set 389 · 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. 1.198 + 891 =
2. 2.Take 970. Reverse its digits and take the smaller number away from the bigger one. What do you get?
3. 3.In the 1089 trick, the subtraction gave a 3-digit number that starts with 6. What is that number?
4. 4.In the 1089 trick, the subtraction gave a 3-digit number that starts with 7. What is that number?
5. 5.Do the 1089 trick with 147: reverse and subtract, then reverse that answer and add. What do you get?
6. 6.Take 670. Reverse its digits and take the smaller number away from the bigger one. What do you get?
7. 7.Take 841. Reverse its digits and take the smaller number away from the bigger one. What do you get?
8. 8.Do the 1089 trick with 460: reverse and subtract, then reverse that answer and add. What do you get?
9. 9.Take 197. Reverse its digits and take the smaller number away from the bigger one. What do you get?
10. 10.Take 244. Reverse its digits and take the smaller number away from the bigger one. What do you get?
11. 11.Take 619. Reverse its digits and take the smaller number away from the bigger one. What do you get?
12. 12.Take 931. Reverse its digits and take the smaller number away from the bigger one. What do you get?
13. 13.Take 890. Reverse its digits and take the smaller number away from the bigger one. What do you get?
14. 14.Do the 1089 trick with 840: reverse and subtract, then reverse that answer and add. What do you get?
15. 15.396 + 693 =
16. 16.In the 1089 trick, the subtraction gave a 3-digit number that starts with 5. What is that number?
17. 17.594 + 495 =
18. 18.Do the 1089 trick with 910: reverse and subtract, then reverse that answer and add. What do you get?
19. 19.In the 1089 trick, the subtraction gave a 3-digit number that starts with 8. What is that number?
20. 20.Take 267. Reverse its digits and take the smaller number away from the bigger one. What do you get?
21. 21.Do the 1089 trick with 925: reverse and subtract, then reverse that answer and add. What do you get?
22. 22.Do the 1089 trick with 456: reverse and subtract, then reverse that answer and add. What do you get?
23. 23.Do the 1089 trick with 369: reverse and subtract, then reverse that answer and add. What do you get?
24. 24.Take 960. Reverse its digits and take the smaller number away from the bigger one. What do you get?
25. 25.Take 850. Reverse its digits and take the smaller number away from the bigger one. What do you get?
26. 26.Do the 1089 trick with 710: reverse and subtract, then reverse that answer and add. What do you get?
27. 27.Take 498. Reverse its digits and take the smaller number away from the bigger one. What do you get?
28. 28.495 + 594 =
29. 29.In the 1089 trick, the subtraction gave a 3-digit number that starts with 3. What is that number?
30. 30.Do the 1089 trick with 973: reverse and subtract, then reverse that answer and add. What do you get?
31. 31.Take 900. Reverse its digits and take the smaller number away from the bigger one. What do you get?
32. 32.297 + 792 =
33. 33.In the 1089 trick, the subtraction gave a 3-digit number that starts with 2. What is that number?
34. 34.Do the 1089 trick with 791: reverse and subtract, then reverse that answer and add. What do you get?
35. 35.Do the 1089 trick with 145: reverse and subtract, then reverse that answer and add. What do you get?
36. 36.Take 583. Reverse its digits and take the smaller number away from the bigger one. What do you get?
37. 37.Take 550. Reverse its digits and take the smaller number away from the bigger one. What do you get?
38. 38.Take 742. Reverse its digits and take the smaller number away from the bigger one. What do you get?
39. 39.Take 980. Reverse its digits and take the smaller number away from the bigger one. What do you get?
40. 40.Do the 1089 trick with 462: 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