Simple calculation: 5 / 9 of 15 + 1 * 8 of 6

Simple calculation: 5 / 9 of 15 + 1 * 8 of 6


15 / 5 / 9 + 1 / 6 * 8
=27+4/3
=27+1+1/3
=28 and 1 / 3



How to fill in the nine palace grid? It is equal to 15 horizontally and vertically


The most common one is:
4 9 2
3 5 7
8 1 6
Pithy formula:
2、 Four shoulders,
6、 Eight is enough
Up nine, down one,
Seven on the left and three on the right



Fill in 1-9 in a Jiugong grid, so that the sum of horizontal, vertical and oblique is equal to 15. How should I fill in?


4 9 2
3 5 7
8 1 6