Solving Problems Involving Adding and Subtracting Decimal Numbers

4.28 + 9.37

3.42 + 4.78

4.32 - 1.83

1.12 + 3.09

The second step for adding or subtracting decimals is _________________.

• Stick a Zero in any empty space.

• Line them Up

• Borrowing

• Regroup

When Adding and Subtracting decimals

• We don't line up the Decimal point

• We line up the decimal point

• We get rid of the decimal points.

• We skip the problem

Beth worked 33.25 hours last week and 23.75 this week. How many total hours did she work?

Xavier spent $15.68 on a shirt, $29.67 on shoes, and $14.95 on pants. How much did he spend?

• 48.20

• 48.40

• 59.20

• 60.30

This month, Cecilia has ridden her bike 114.7 miles. BEFORE THAT, she had ridden the bike for a total of 1,468 miles. How many total miles has Cecilia ridden her bike NOW?

• 116.168 miles

• 1,582.7 miles

• 261.5 miles

• 1,353.3 miles

Trinity loves to run.  She ran 3.4 miles on Monday, 2.75 miles on Tuesday, and 5 miles on Wednesday.  How many total miles did she run?

• 3.14

• 314

• 10.15

• 11.15