Question

Lawrence spent $1.89

on a bottle of paint
and $0.45 on a brush.

A. What was the total amount he spent?
Use the model to help you.



B. Explain how the model helps you find
the sum.

Answer 1

To find the total amount Lawrence spent, we need to add the cost of the bottle of paint and the cost of the brush.

A. The total amount Lawrence spent is:

$1.89 + $0.45 = $2.34

B. The model helps us find the sum by providing a clear and concise way to add two numbers together. We can use the following algorithm to find the sum of two numbers:

Start

Read the first number

Read the second number

Add the two numbers to compute the sum

Print the sum

Stop

We can apply this algorithm to find the total amount Lawrence spent by substituting $1.89 for the first number and $0.45 for the second number, then adding them together to compute the sum.

Hope this helped :)