Array — 8 × 9 = 72 — free printable diagram

What is 8 × 9?

This array is laid out as 8 rows of 9 dots. Counting every dot gives 72, so 8 × 9 = 72.

Rows

8

Columns

9

Total dots

72

Multiplication

8 × 9 = 72

Division

72 ÷ 8 = 9

• Count the rows, then count how many are in each row: 8 rows of 9 makes 8 × 9 = 72.
• As repeated addition that is 9 added 8 times: 9 + 9 + 9 + 9 + 9 + 9 + … = 72.
• Turning the array on its side does not change the total, which is the commutative property: 8 × 9 = 9 × 8 = 72.
• The same picture shows the two division facts as well: 72 ÷ 8 = 9 and 72 ÷ 9 = 8.