Adding, Subtracting, Multiplying, and Dividing Decimals in Word Problems

When ​ (a)   decimals, I must always ​ (b)   the decimals.

• adding or subtracting

• line up

• multiplying or dividing

• get rid of

Tags

CCSS.5.NBT.B.7

What is the rule for adding or subtracting decimals?

• Add first

• Line up the decimals first, then fill in with zeros.

• Move the decimal to the right the total amount of numbers after the decimal.

• Subtract

Tags

CCSS.5.NBT.B.7

Where does the decimal go in this product?

7.8 x 3.2

• 24.96

• 2.496

• 249.6

• 0.2496

Tags

CCSS.6.NS.B.3

What is the first step in this problem?

• Divide 9 by 8

• Move the decimal place 1 place to the left in the divisor and dividend.

• Move the decimal place 1 place to the right in the divisor and dividend.

Tags

CCSS.5.NBT.B.7

7.3B

• A

• B

• C

• D

Tags

CCSS.7.EE.B.3

7.3B

• A

• B

• C

• D

Tags

CCSS.7.EE.B.3

Mrs. Bentley took her two nieces to the zoo this past weekend. They bought two child tickets that cost $5.99 each, an adult ticket that cost $12.99, three lunches that cost $7.49 each and 3 waters that cost $4 each. If Mrs. Bentley brought a $100 bill, how much change did she receive?

• 40.56

• 59.44

• 41.44

• 100.00

Tags

CCSS.7.EE.B.3

Every week Joshua runs 2.1 miles on Monday, 3.1 miles on Wednesday, 4.05 miles on Thursday, and 2.65 miles on Friday. How many total miles will he run in a week?

• 11.2

• 11.9

• 19.1

• 12.6

Tags

CCSS.5.NBT.B.7

John ate some snacks with a total of 80.79 calories. If the chips he ate were 43.39 calories, how many calories were in the rest of his snack?

• 124.08 calories

• 124.08 chips

• 37.4 chips

• 37.4 calories

Tags

CCSS.6.NS.B.3

One ticket to a high school football game is $5.50. there are six home games each season. How much would it cost a family of four to attend all of the home games this season?

• $33.00

• $3.30

• $22.00

• $132.00

Tags

CCSS.7.EE.B.3