course Mth 151 vN}؍Zf_ʴBϫҗNassignment #019
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20:38:00 query 4.2.6 53812 in expanded form. What is 53812 in expanded form?
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RESPONSE --> 5*10^4 + 3*10^3 + 8*10^2 + 1*10^1 + 2*10^0 confidence assessment: 2
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20:38:26 STUDENT RESPONSE: (5*10^4) +(2*10^3) + (1*10^2) +(8 * 10^0)
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RESPONSE --> self critique assessment: 2
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20:47:08 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 +6*10^0) + (2*10^2 + 7*10^1 + 9*10^0) = 8*10^2 +1*10^1 + 5*10^0 which is 815 confidence assessment: 2
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20:47:26 ** We write this sum as 5 * 10^2 + 3 * 10^1 + 6 * 10^0 + 2 * 10^2 + 7 * 10^1 + 9 * 10^0 ______________________________ 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: 2
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