Chapter 1

Find the sums and differences. $$ \begin{array}{r} 908 \\ +\quad 29 \\ \hline \end{array} $$

Use the commutative property of addition to find the sum of 12 and 41 in two different ways.

Complete the following statements. 7 ? 5 = _____ since _____ +5 = 7.

Perform each addition. Show the expanded form in problems 1 and 2 . Add 63 and 25 .

Use the method of rounding whole numbers to solve each problem. Round 3387 to the nearest hundred.

Write each number in words. 12,542

Do the phrases "four," "one hundred twenty-three," and "one thousand five" qualify as numerals? Yes or no?

In the Hindu-Arabic number system, each period has three values assigned to it. These values are the same for each period. From right to left, what are they?

Complete the following statements. 9 ? 1 = _____ since ______ +1 = 9.

Perform each addition. Show the expanded form in problems 1 and 2 . Add 4,026 and 1,501.

Use the method of rounding whole numbers to solve each problem. Round 26,515 to the nearest thousand.

Write each number in words. 101,074,003

Find the value of 5 in the number 65,000 .

In the number \(42,826,\) how many hundreds are there?

Complete the following statements. 17 ? 8 = _____ since _____ +8 = 17.

Perform each addition. Show the expanded form in problems 1 and 2 . Add 231,045 and 36,121.

Use the method of rounding whole numbers to solve each problem. Round 30,852,900 to the nearest million.

Write each number in words. 1,000,008

Find the value of 4 in the number 439,997,007,010 .

Perform the following subtractions. $$ \begin{array}{r} 534 \\ -203 \\ \hline \end{array} $$

Use the method of rounding whole numbers to solve each problem. Round 39 to the nearest hundred.

Express each number using digits. One hundred three thousand, twenty-five.

Find the value of 0 in the number 108 .

Graph the following whole numbers on the number line: 2,3,5 .

$$ \begin{array}{r} 726 \\ +892 \\ \hline \end{array} $$$$ \begin{array}{r} 390 \\ +169 \\ \hline \end{array} $$

Perform the following subtractions. $$ \begin{array}{r} 857 \\ -\quad 43 \\ \hline \end{array} $$

Perform each addition. For the next three problems, show the expanded form. Add 476 and 85 .

Use the method of rounding whole numbers to solve each problem. Round 59,600 to the nearest thousand.

Express each number using digits. Six million, forty thousand, seven.

Write the number 63,425 as you would read it aloud.

Find the sums and differences. $$ \begin{array}{r} 166 \\ +660 \\ \hline \end{array} $$

Perform the following subtractions. $$ \begin{array}{r} 95,628 \\ -34,510 \\ \hline \end{array} $$

Perform each addition. For the next three problems, show the expanded form. Add 27 and 88 .

Express each number using digits. Twenty trillion, three billion, eighty million, one hundred nine thousand, four hundred two.

Write the number eighteen million, three hundred fifty-nine thousand, seventy- two.

Find the sums and differences. $$ \begin{array}{r} 391 \\ +951 \\ \hline \end{array} $$

Perform the following subtractions. $$ \begin{array}{r} 11,005 \\ -1,005 \end{array} $$

Perform each addition. For the next three problems, show the expanded form. Add 67,898 and 85,627.

For the following problems, complete the table by rounding each number to the indicated positions. 5,221 $$ \begin{array}{|l|l|l|l|} \hline \text { hundred } & \text { thousand } & \text { ten thousand } & \text { million } \\ \hline & & & \\ \hline \end{array} $$

Express each number using digits. Eighty billion, thirty-five.

Round 427 to the nearest hundred.

Find the sums and differences. $$ \begin{array}{r} 48 \\ +36 \\ \hline \end{array} $$

Find the difference between 88,526 and 26,412 .

For the next three problems, find the sums. $$ \begin{array}{l} 57 \\ 26 \\ 84 \\ \hline \end{array} $$

For the following problems, complete the table by rounding each number to the indicated positions. 91,803 $$ \begin{array}{|l|l|l|l|} \hline \text { hundred } & \text { thousand } & \text { ten thousand } & \text { million } \\ \hline & & & \\ \hline \end{array} $$

For the following problems, write all numbers in words. $$912$$

What is a numeral?

Round 18,995 to the nearest ten.

Perform the following subtractions. Show the expanded form for the first three problems. $$ \begin{array}{r} 53 \\ -35 \\ \hline \end{array} $$

For the next three problems, find the sums. $$ \begin{array}{r} 847 \\ 825 \\ 796 \\ \hline \end{array} $$