91Ó°ÊÓ

Find each of the following products. (Multiply.) In case use the shortcut method. $$\begin{array}{r}432 \\\\\times 555 \\\\\hline\end{array}$$

Mentally give a one-digit estimate for each of the following quotients. That is, for each quotient, mentally estimate the answer using one of the digits \(1,2,3,4,5,6,7,8,\) or 9 $$728 \div 177$$

Write each of the following numbers in words. $$895$$

Complete the following tables. $$\begin{array}{|c|c|c|} \hline\begin{array}{c}\text { First } \\\\\text { Number } \\\a\end{array} & \begin{array}{c}\text { Second } \\\\\text { Number } \\\b\end{array} & \begin{array}{c}\text { The Difference } \\ a\text { of } b\\\a - b\end{array} \\ \hline 90 & 79 \\\\\hline 80 & 69 \\\\\hline 70& 59 \\\ \hline 60 & 49 \\\\\hline\end{array}$$

Use the rule for the order of operations to simplify each expression. [Examples \(13-16]\) $$480+12(32)^{2}$$

Mentally give a one-digit estimate for each of the following quotients. That is, for each quotient, mentally estimate the answer using one of the digits \(1,2,3,4,5,6,7,8,\) or 9 $$921 \div 243$$

Add each of the following. (All problems involve carrying in at least one column. $$\begin{array}{l} 12 \\ 34 \\ 56 \\ 78 \\ \hline \end{array}$$

A) Complete the following table by rounding the numbers on the left as indicated by the headings in the table. $$\begin{array}{|c|c|c|c|} \hline \begin{array}{c} \text { Original } \\ \text { Number } \\ \end{array} & \begin{array}{c} \text { Ten } \\ \end{array} & \begin{array}{c} \text { Rounded To The Nearest } \\ \text { Hundred } \\ \end{array} & \begin{array}{c} \text { Thousand } \\ \end{array} \\ \hline 5,999 \\ \hline \end{array}$$

Write each of the following numbers in words. $$707$$

Complete the following tables. $$\begin{array}{|c|c|c|} \hline\begin{array}{c}\text { First } \\\\\text { Number } \\\a\end{array} & \begin{array}{c}\text { Second } \\\\\text { Number } \\\b\end{array} & \begin{array}{c}\text { The Difference } \\ a\text { of } b\\\a - b\end{array} \\ \hline 400 & 256 \\\\\hline 400 & 144 \\\\\hline 225& 144 \\ \hline 225 & 81 \\\\\hline\end{array}$$