Decimal Operations

Find the sum 13.09 + 8.29 =

Find the sum 3.09 + .9

Find the sum .5 - .28 =

Multiply 9 x 0.06 =

Solve the word problem: If a pencil costs 0.425 and you buy 4 pencils, how much do you spend in total?

• 1.7

• 1.75

• 1.8

• 2.0

The decimals NEED to be lined up for which operation?

• addition & subtraction

• multiplication & division

• all the operations

Multiply 3 x .05 =

Ms. Jones asks her students to find the product of 2.5 x 3.4. Stephanie says that the answer is 8.5. Mary disagrees and says that the product of tenths time tenths should be hundredths and therefore there should be 2 digits behind the decimal point. Is Mary correct?

Helena has $17.23. If she buys a stapler for $4.86 and tape for $3.72, how

much money will she have left?

• $12.37

• $13.51

• $8.65

• $8.58

What is the value of the following expression

   4.6 ÷ 100

• 460

• 46

• 0.46

• 0.046