Adding and Subtracting Decimal Fractions

When adding or subtracting with decimals, you -

• Move decimals out

• Shift decimals 3 places over

• Line up the decimals

• Ignore decimals

Using what decimal operations, should you line up the decimals?

• adding and subtracting 

• multiplying and dividing

• adding and multiplying 

• subtracting and dividing

Which operations require finding a common denominator?

• multiplication 

• addition 

• addition and subtraction 

• division 

what is 1.234 + 1.456

• 2.69

• 2.345

• 2.789

• 2.70

Mr. Starr bought candy for Halloween.  He purchased a 10 pound bag of candy.  When he ran out of candy he bought a bag of Jolly Ranchers that weighed 2.5 pounds and a bag of Kisses that weight 6.72 pound.  How much candy did he buy in all?

• 18.22 pounds

• 7.07 pounds

• 10.22 pounds

• 19.22 pounds

James brought a fresh 2-liter bottle of sweet tea to school. He drank 0.29 liter before lunch and 0.189 liter after lunch. He tried to offer the rest to Mr. Blow, but Mr. Blow said, "Seriously?!" How much tea was left at the end of the day?

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

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

-12.4 + 9.2 + 1 

Mathematical Equivalence

ON

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