Query Ass 19

course Mth 151

??e??????M?Y·??????·assignment #019019. `query 19

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College Algebra

03-25-2007

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18:34:46

query 4.2.6 53812 in expanded form.

What is 53812 in expanded form?

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RESPONSE -->

50,000+2,000+100+10+8= (50*10^3)+(2*10^3)+(1*10^2)+(10*10^0)+(8*10^0)

Problem 6 is 52,118

confidence assessment: 3

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18:34:52

STUDENT RESPONSE: (5*10^4) +(2*10^3) + (1*10^2) +(8 * 10^0)

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RESPONSE -->

self critique assessment: 3

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18:35:40

query 4.2.20 536 + 279 in expanded notation

Write 536 + 279 in expanded notation.

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RESPONSE -->

(5*10^2)+(3*10^1)+(7*10^0) + (2*10^2)+(7*10^1)+(8*10^0)

537+278

confidence assessment: 3

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18:35:46

** We write this sum as

5 * 10^2 + 3 * 10^1 + 6 * 10^0 +

2 * 10^2 + 7 * 10^1 + 9 * 10^0

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8 * 10^2 + 10* 10^1 + 15* 10^0. Since 10 * 10^1 = 10^2 we can write this as

9 * 10^2 + 0 * 10^1 + 15 * 10^0.

Since 15 * 10^0 = 10 * 10^0 + 5 * 10^0 = 10^1 + 5 * 10^0 we rewrite this as

9 * 10^2 + 1 * 10^1 + 5 * 10^0.

This result is expressed in our place-value system as

915. **

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RESPONSE -->

self critique assessment: 3

Be sure you know how to show these details when you take the test.

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See my notes and let me know if you have questions.