Array — 2 × 10 = 20 — free printable diagram

What is 2 × 10?

This array is laid out as 2 rows of 10 dots. Counting every dot gives 20, so 2 × 10 = 20.

Rows

2

Columns

10

Total dots

20

Multiplication

2 × 10 = 20

Division

20 ÷ 2 = 10

• Count the rows, then count how many are in each row: 2 rows of 10 makes 2 × 10 = 20.
• As repeated addition that is 10 added 2 times: 10 + 10 = 20.
• Turning the array on its side does not change the total, which is the commutative property: 2 × 10 = 10 × 2 = 20.
• The same picture shows the two division facts as well: 20 ÷ 2 = 10 and 20 ÷ 10 = 2.