Bar Model — 5 + 5 = 10 — free printable diagram

What is 5 + 5?

This part-whole bar model shows 5 and 5 as the two parts of one whole. Adding the parts gives the whole, so 5 + 5 = 10.

First part

5

Second part

5

Whole

10

Addition

5 + 5 = 10

Subtraction

10 − 5 = 5

• A part-whole bar model shows the whole on one bar and the parts that make it on the bar underneath. Here the two parts are 5 and 5, and together they fill the whole bar of 10.
• Both parts are the same size, so this is a doubling fact: double 5 is 10.
• Reading it backwards gives the matching halving fact: 10 split into two equal parts is 5 each, so 10 ÷ 2 = 5.
• That is the fact family for these three numbers — the model is the reason 5, 5 and 10 belong together, whichever way round you write them.