# listening skills march 16, 2015. today listening strategies & listening for details: numbers

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LISTENING SKILLS March 16, 2015

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LISTENING SKILLS

March 16, 2015

Today• Listening strategies & listening for details: Numbers

Listening for details: Test/Quiz situation

Numbers

1 2,000,300

500 %

9,999,999,999,999

450,000

English number system

1 2 3 4 5… EASY!

10 11 12 13… 20 21 22 30 40 50…still easy!

100

Has 3 digits (numbers)

hundreds 200 300 400 500 …900

English number system

Hundreds

• 150 = 100 + 50• one hundred fifty

• 935 = 900 + 35• nine hundred thirty-five

• - Look at first digit, then at the other two digits.

English number system

1,000 3,000 5,000 8,000

Has 3 digits AFTER the comma (4 – 6 digits total)

2,500 = 2,000 + 500

two thousand five hundred

thousands

English number system

1,000 3,000 5,000 8,000

Has 3 digits AFTER the comma (4 – 6 digits total)

10,000 = ?

- Look at the number of digits LEFT of the comma.

100,000 = ?

thousands

English number system

1,000,000 4,000,000 9,000,000

Has 6 digits AFTER the first comma (7 – 9 digits total)

10,000,000 = ?

100,000,000 = ?

millions

English number system

1,000,000,000 4,000,000,000 9,000,000,000

Has 9 digits AFTER the first comma (10 – 12 digits total)

10,000,000,000 = ?

100,000,000,000 = ?

1,000,000,000,000 = 1 trillion

bill ions

English number system

What are these numbers?

4,600 - four thousand six hundred (46 hundred)

25, 000,000 - twenty-five million

813 – eight hundred thirteen

920,000 – nine hundred twenty thousand

English number system

What are these numbers?

350,000,000 – three hundred fifty million

88,000 – eighty-eight thousand

740,000,000,000 – seven hundred forty billion

1,000,000,000,000 – one trillion

English number systemWrite these numbers as digits:

• Five billion - 5,000,000,000

• Three hundred fifty thousand – 350,000

• Seven thousand eight hundred – 7,800

• Forty-four million – 44,000,000

• Six million four hundred thousand – 6,400,000

• Nine point three million – 9,300,000

44,500,000 – 44.5 million

44,000,500- forty-four million five hundred

10,008,000,000

3,569,983,234

“:Point”

12, 300,000 12.3 million

456,800,000,000 456.8 billion

12,030,000 twelve million thirty thousand

English number system1. 6,700

2. 45, 000,000

3. 223,000

4. 8, 000,000,000

5. 19,000

6. 89, 500

7. 720,000,000

8. 92,340,110,000

Numbers

What are some situations where numbers are important?

- Money

- Demographics (i.e., population)

- Research

Numbers

Hearing numbers can be difficult until you have a lot of practice with them.

To help you understand numbers that you are hearing , you can use inference.

- Use the context and any background knowledge you have to help understand numbers you hear.

Numbers - Inference

Example: Population

- Shanghai1,000

10,000

100,000

1,000,000

10,000,000

100,000,000

1,000,000,000

13,000,000

Numbers - Inference

Example: Research

- Adult obesity rate in America

Rate usually = percentage (%)

- The number will not be over 100.

35.7%

Homework

From tonight, check the website “Assignments” section.