Bar Model — 7 + 10 = 17 — free printable diagram

What is 7 + 10?

This part-whole bar model shows 7 and 10 as the two parts of one whole. Adding the parts gives the whole, so 7 + 10 = 17.

First part

7

Second part

10

Whole

17

Addition

7 + 10 = 17

Subtraction

17 − 7 = 10

• 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 7 and 10, and together they fill the whole bar of 17.
• The parts can be added in either order — swapping them does not change the whole: 7 + 10 = 10 + 7 = 17.
• Covering up one part turns the same picture into a subtraction: 17 − 7 = 10 and 17 − 10 = 7.
• That is the fact family for these three numbers — the model is the reason 7, 10 and 17 belong together, whichever way round you write them.