Exploring Operations with Decimals

What is the first step when adding or subtracting decimals?

• Multiply the numbers

• Move the decimal to the right

• Add zeros to the numbers

• Line up the decimals

Tags

CCSS.5.NBT.B.7

When multiplying decimals, which number should be placed on top?

• The number with more digits

• The larger number

• The smaller number

• The number with fewer digits

Tags

CCSS.5.NBT.B.7

What should you do with the decimal when multiplying decimals?

• Ignore it initially and then swing it

• Move it to the left

• Move it to the right

• Drop it like a rock

Tags

CCSS.5.NBT.B.7

How do you handle the decimal in the divisor when dividing decimals?

• Move it to the left

• Drop it like a rock

• Move it to the right to make the divisor a whole number

• Ignore it

Tags

CCSS.6.NS.B.2

CCSS.5.NBT.B.6

What happens to the decimal in the dividend when dividing decimals?

• It moves to the right

• It floats up like a balloon

• It drops down like a rock

• It moves to the left

Tags

CCSS.6.NS.B.2

CCSS.5.NBT.B.6

In the example 3.2 + 71.35, what is the correct answer?

• 75.50

• 75.55

• 74.50

• 74.55

Tags

CCSS.6.NS.B.3

In the example 0.02 * 1.331, what is the correct answer?

• 0.02226

• 0.02662

• 0.02262

• 0.02626

Tags

CCSS.6.NS.B.3

In the example 4.05 ÷ 0.9, what is the correct answer?

• 5.5

• 4.0

• 5.0

• 4.5

Tags

CCSS.5.NBT.B.7

What is an invisible decimal?

• A decimal that is not written but understood to be there

• A decimal that is always at the end of a number

• A decimal that moves to the right

• A decimal that moves to the left

Tags

CCSS.5.NBT.A.3A

Can you add zeros to the right of a decimal without changing the value?

• Yes, it changes the value

• No, it does not change the value

• Yes, it makes the number larger

• No, it makes the number smaller

Tags

CCSS.5.NBT.B.7