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Mixed Decimals
Word Problems
Estimating Products
Multiplying numbers that end in zero
Surprise!!!
100

36.25 + 8.67 = _____

44.92

100

Mrs. Zamir wants to buy 8 protractors and some erasers for her classroom. She has $30. If protractors cost $2.65 each, how much will Mrs. Zamir have left to buy erasers?

She will have $8.80 left to buy erasers

100

656 x 106 = _____

70,000

100

1,900 x 20 = ____

38,000

100

Write the following in expanded form: 453.876

400 + 50 + 3 + .8 + .07 +.006 = 453.876

200

7. – 0.35 = _____

6.65

200

Mrs. Nguyen used 1.48 meters of netting to make 4 identical mini hockey goals. How much netting did she use per goal?

She used 0.37 meters of netting per net

200

3,108 x 7,942 = _____

24,000,000

200

6,000 x 50 = _____

300,000

200

Billy was mowing lawns to make money. If he has made $57.85 this year, but had to pay $25 dollars for gas, how much money has he made?

He has made $32.85.

300

2.35 x 4

9.4

300

Michael saves $423 a month for college. About how much money will he have saved after 4 years?

He saved about $1600

300

425 x 9,311 = _____

3,600,000

300

250 x 300 = _____

75,000

300

Gina was shopping for Thanksgiving dinner. She bought a 24.12 pound turkey, 12.3 pounds of potatoes, and 7.9 pounds of stuffing. How many total pounds did she buy?

She bought 44.32 pounds total

400

0.021 ÷ 7 = _____

0.003

400

Tickets to a baseball game are $20 for an adult and $15 for a student.  A school buys tickets for 45 adults and 600 students.  How much money will the school spend for the tickets?

The school spent $9,900 on tickets

400

8,633 x 57,008 = _____

540,000,000

400

45 x 103 =

45000

400

Which 2 is bigger, and by how much? 432.892

The 2 in the ones place is bigger by 1000

500

9.8 ÷ 5 = _____

1.96

500

There are 19,763 tickets available for a New York Knicks home game.  If there are 41 

home games in a season, about how many tickets are available for all the Knicks’ home games?


There is about 800,000 tickets available

500

What are the estimated factors?

8,379 x 541 = __________ = 4,000,000

8,000 x 500

500

Explain how knowing 50 x 4 = 200 helps you find 500 x 400.

If we know that 50 x 4 is 200 then we can just add 3 more zeros to get the answer of 500 x 400

500

George was making brownies. He made 52.575 oz. If he wanted to split them into 5 equal pans, how much will be on each pan?

There will be 10.515 oz in each pan