Lines and Angles

Interactive activity for lines and angle from Az Nieda

Reading Tables and Estimation

1. Mr. Cheng, the band director, counted the number of instruments played by  members of the band.

Band instruments
Instrument	Girls	Boys
Clarinet	18	13
Flute	19	13
Trombone	11	39

How many more boys played the trombone than the clarinet?

2. A charity organization compared the amounts of money that its members donated to certain causes.

Donations
Person	Animal rights	Hunger prevention
Tammy	$111	$120
Gustav	$60	$130
Dwayne	$55	$48
Johnny	$172	$128

How much did Dwayne donate to hunger prevention?

3. An agricultural agency is researching how much cheese people have been eating in different parts of the world.

Cheese consumption  (kg)
Country	1996	2006
Great Britain	92	104
Australia	101	112
Germany	120	205
Canada	100	110

How much more cheese did people in Germany consume  in 2006 than in 1996?

4. Dr. Scott, a zoo director, researched ticket prices at other zoos around the country.

Zoo ticket prices
Zoo	Adult	Child
Los Angeles	$13	$8
Denver	$12	$7
San Francisco	$15	$9
Brookfield	$12	$8
Houston	$10	$6

Of the zoos shown, which charges the least for an adult ticket?

Houston

Brookfield

Denver

5.A banana farm received a total of 567 millimeters of rain in March and April. If 104 millimeters of rain fell on the farm in March, about how many millimeters of rain fell on the farm in April? Choose the better estimate.

      500

      800

6.During an average summer day, people in Newberg use 7,146 kilowatts of electricity from water and 8,718 kilowatts from coal. In total, about how many kilowatts of electricity does the city use on an average summer day? Choose the better estimate.

16,000

 21,000

7.When Becky went to bed, there were 169 birds on the lake. When she woke up in the morning, there were 925 birds on the lake. About how many birds landed on the lake overnight? Choose the better estimate.

 700

 1,700

8. This year, local food banks collected a total of 486,107 kilograms of food donations. This is 117,859 kilograms more than was collected last year. About how many kilograms of food were collected last year? Choose the better estimate.

1,400,000

400,000

9. Bridget works in the kitchen of a Mexican restaurant. Over the weekend, she washed 335 small plates and 631 large plates. About how many plates did she wash over the weekend? Choose the better estimate.

900

1,900

10. In December, a hot dog company sold 908,857 hot dogs in the United States and 525,249 hot dogs in other countries. About how many hot dogs in all did the company sell during that month? Choose the better estimate.

2,400,000

1,400,000

Polygon Song