Decimal Operations - Add/Subtract/Multiply/Divide

What is the first step when adding and subtracting decimals?

• Line up the numbers
• Line up the decimals
• Add or subtract like normal
• Add in placeholders

Tags

CCSS.5.NBT.B.7

How do you know where the decimal point goes in a multiplication problem?

• Count the TOTAL digits behind the decimal point in the problem and place the decimal point there in your answer.
• Line them up
• Move the outside one to make it a whole number and move the inside one the same number of places.

Tags

CCSS.5.NBT.B.7

I forgot to add the decimal to the product. Rewrite the product to include the decimal point.

2.39 x 4.37 = 104443

If there is a decimal in the divisor, what must be done first?

• The divisor must be made a whole

• The decimal gets moved into the dividend

• Divide like normal

• Bring the decimal straight up into the quotient

In a division problem when there is a decimal in the dividend but not in the divisor, what do I do first?

• Ignore the decimal

• Move the decimal to make the dividend a whole number

• Move the decimal straight up in the quotient

• Move the decimal in the divisor to make it a whole number

When you move the decimal in the divisor, what happens in the dividend?

• You raise the decimal straight up
• Nothing
• You put a zero in the front
• The decimal moves the same amount in the dividend that it moved in the divisor.

Tags

CCSS.5.NBT.B.6

CCSS.6.NS.B.2

Which operation do you use to solve this problem?

Katie lives 1.34 miles from school. She biked 0.75 miles, but then her bike tire went flat, so she had to walk the rest of the way. How far did Katie walk?

• add

• subtract

• multiply

• divide

Which operation do you use to solve this problem?

Haley and her 4 friends decide to go out to dinner at Applebee's. The bill for their table came to $65.30. If they want to split the bill evenly between them, how much will each person pay?

• add

• subtract

• multiply

• divide

Which operation do you use to solve this problem?

Shelly paid for a $7.59 paperback book with a $10 dollar bill. How much change did she get back?

• add

• subtract

• multiply

• divide

Which operation do you use to solve this problem?

A store is shipping 26 birdhouses to a park. Each birdhouse weighs 3.93 pounds. What is the total weight of the shipment?

• add

• subtract

• multiply

• divide