Question

Paige goes shopping and buys leggings for $24.95, a crewneck for $30.50, and a new purse (p). She says the expression 5.55+p can be used to find her total. Explain what she did wrong when writing her expression and write a new expression that correctly describes her total.

Answer 1

`55.45+p`

The decimal point is one step behind and rounded the number.

Explanation:

Cost of leggings = $24.95

Cost of crewneck = $30.50

Cost of new purse = p

The correct expression to find the total cost of her shopping is

`24.95+30.5+p`

`=55.45+p`

What Paige did was she put the decimal point one step behind and rounded the number.

`2.495+3.05+p`

`=5.545+p`

`=5.55+p`

So, she got the wrong expression.