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Heath Mathematics Connections: Grade 5

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Heath Mathematics Connections: Grade 5

最 低 价:¥117.00

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出 版 社:Houghton Mifflin College Div

出版时间:

I S B N:0669119032

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117.00元

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Check Your Receipts Have you ever helped with theshopping? Groceries are a big expense for mostfamilies. Some people use a calculator when theyshop. As they pick each item, they punch in theprice. They may know their total even before theyreach the checkout.Some people watch as each item is added to thetotal. A mistake of one decimal place can make abig difference. For example, a $0.59 item could beread as $5.90. How much would a mistake like thiscost?Computer checkouts have helped to prevent somemistakes. However, some people still check theirreceipts very carefully. The next time your familybrings home a grocery receipt, check the total witha calculator. You should also read each item tocheck for other mistakes. What other mistakesmight be found on a grocery receipt?

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