Estimating with Decimal Operations

What is the result of multiplying 3.5 by 4?

• 20

• 14

• 7

• 10

Find the product of 2.3 and 5.

• 11.5

• 7.8

• 3.5

• 13.2

What is the result of dividing 9.6 by 3?

• 3.2

• 4.8

• 6.4

• 2.5

What is the difference between 8.9 and 5.4?

• 6.4

• 4.9

• 3.5

• 2.5

Multiply 1.6 by 7.

• 13.4

• 5.2

• 11.2

• 9.8

Divide 5.2 by 4.

• 1.3

• 2.6

• 0.8

• 3.5

What is the product of 3.4 and 6?

• 20.4

• 15.4

• 23.4

• 18.4

If you subtract 2.5 from 9.8, what is the result?

• 3.7

• 7.3

• 6.2

• 5.0

How do I know where to put the decimal point in the answer to a multiplication problem?

• Bring the decimal straight down to the product

• There is no decimal point

• Count how many decimal places are in the problem

• Move the decimal 2 spaces from the left

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
• Erase the decimal