Question

Joe drew this bar model to find the unknown number of balls. find the unknown number? 106 ? = 250

Answer 1

Answer:

144

Step-by-step explanation:

We are given that

106 balls+_=250 balls

We have to find the  unknown  number of balls in model.

Let x be the unknown number of balls.

To find the unknown number of balls we will use subtraction property of equality.

Substitute the value

$106+x=250$

This is the algebraic expression for this model

Using subtraction property of equality

Then, we get

$x=250-106$

After simplification, we get

$x=144$

Hence, the unknown number=144

Answer 2

250-106= 144 There are 144 unknown balls.