Use 16 different factors of 468 in a 4 by 4 grid. The numbers in the top row add to 95. The numbers in the second row add to 205. The numbers in the third row add to 326. The numbers in the bottom row add to 24. The numbers in the left column add to 183. The numbers in the second column add to 45. The numbers in the third column add to 89. The numbers in the right column add to 333. The central four cells contain square numbers.
Here's a #yohaku to take you into the weekend. Fill in cells with 16 different factors of 468 to get totals shown in each row/column AND shaded cells contain square numbers. #mathsky #iTeachMath