Add and Subtract Decimals

What did the student incorrectly do while solving this equation?

• Subtracted instead of added the amounts together

• Nothing, the student solved the problem correctly

• Did not line up the decimal points

What is the sum of 51.37 and 24.50?

• 26.87

• 7,587.00

• 75.87

What word problem can be represented by 51.37 + 24.5? Hint: Read the possible answers CAREFULLY!

• Fifty-one dollars and thirty-seven cents less than Twenty-four dollars and fifty cents.

• Fifty-one dollars and thirty-seven cents more than Twenty-four dollars and fifty cents.

• Fifty-one dollars and thirty-seven cents more than Twenty-four dollars and five cents.

What is the difference between 8.97 and 2.82?

• 6.15

• 11.79

• 61.5

Chance has two numbers 2.376 and 0.122.
What is the sum of both the numbers?

​ ​ ​ (a)  

What is the difference of both the numbers?

​ ​ (b)  

• 2.498

• 3.498

• 1.498

• 2.254

• 1.456

• 0.876

• 1.75

Kyle has two numbers 2.376 and 0.122.
What is the sum of both the numbers?

​ ​ ​ (a)  

What is the difference of both the numbers?

​ ​ (b)  

• 2.498

• 3.498

• 1.498

• 2.254

• 1.456

• 0.876

• 1.75

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

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?