### Home > CC2MN > Chapter 9 Unit 9 > Lesson CC2: 9.1.1 > Problem9-20

9-20.

Copy each problem. Then find the sum, difference, product, or quotient. Remember to show all of your steps.  Homework Help ✎

1. $23.6+12$

To add numbers with decimals remember to line up the decimal points.

$35.6$

1. $16.5+52.43$

See part (a).

1. $46.21-31.2$

To find the difference between numbers with decimals remember to line up the decimal points.

$15.01$

1. $27.5-13.11$

See part (c).

1. $4.5(6)$

Remember, when you multiply numbers with decimals, you do not need to line up the decimal points.

1. $55\div2$

Remember to add a decimal and zero. Fifty five divided by $2$ is not a whole number.