Adding Subtracting Multiplying and Dividing Decimals with Word Problems

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

• adding or subtracting

• line up

• multiplying or dividing

• get rid of

When adding or subtracting with decimals, you -

• Move decimals out

• Shift decimals 3 places over

• Line up the decimals

• Ignore decimals

What is the product of 54.5 x 2.23?

• 121.535

• 1215.35

• 10.95

• 109.5

What is the product of 78.45 x 3.2?

• 251.04

• 2510.40

• 79.30

• 25.5104

Answer the question above.

• A

• B

• C

• D

Yesterday I went to 7-11 and purchased 4 candy bars that were $1.25 each and 6 packs of gum that were $2.75 each. How much did I have to pay the cashier, before tax?

• $7.50

• $21.50

• $5.00

• $16.50

Answer explanation

1) Find the cost of the candy bars. (x)

2) Find the cost of the gum. (x)

3) Add the two costs.

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

Mrs. Bentley is buying cookies for the 5th grade graduation. Each cookie costs $1.12 and there are 76 fifth graders. The total of all the cookies was split among the 4 teachers. How much did each teacher pay for the cookies?

• 0.05

• 340.48

• 85.12

• 21.28

Find the product.

• 0.1908

• 1.908

• 19.08

• 190.8

Find the value of this expression

• 57

• 14.7

• 15.7

• 1570