Chapter 1

Find the sums and differences. $$ \begin{array}{r} 584 \\ -226 \\ \hline \end{array} $$

For the following problems, show that the pairs of quantities yield the same sum. $$(731+256)+171 \text { and } 731+(256+171)$$

For the following problems, perform the subtractions. You may chedk each difference with a calculator. $$ \begin{array}{r} 11 \\ -\quad 5 \\ \hline \end{array} $$

For the following problems, perform the additions. If you can, check each sum with a calculator. $$43,156,219+2,013,520$$

If a 412 page book has about 52 sentences per page, it will contain about 21,424 sentences.

How many four-digit whole numbers are there?

The fact that (a first number \(+\) a second number \()+\) third number \(=\) a first number \(+(\) a second number + a third number) is an example of the _____ property of addition.

For the following problems, perform the subtractions. You may chedk each difference with a calculator. $$ \begin{array}{r} 14 \\ -\quad 6 \\ \hline \end{array} $$

For the following problems, perform the additions. If you can, check each sum with a calculator. $$17+6$$

In 1950 , there were 5,796 cases of diphtheria reported in the United States. Round to the nearest hundred.

Is there a smallest whole number? If so, what is it?

The fact that \(0+\) any number \(=\) that particular number is an example of the ______ property of addition.

For the following problems, perform the subtractions. You may chedk each difference with a calculator. $$ \begin{array}{r} 12 \\ -\quad 9 \\ \hline \end{array} $$

For the following problems, perform the additions. If you can, check each sum with a calculator. $$25+8$$

In 1979,19,309,000 people in the United States received federal food stamps. Round to the nearest ten thousand.

Is there a largest whole number? If so, what is it?

Find the sums and differences. $$ \begin{array}{r} 1,007 \\ +\quad 331 \\ \hline \end{array} $$

The fact that a first number \(+\) a second number \(=\) a second number \(+\) a first number is an example of the _____ property of addition.

For the following problems, perform the subtractions. You may chedk each difference with a calculator. $$ \begin{array}{r} 56 \\ -12 \end{array} $$

For the following problems, perform the additions. If you can, check each sum with a calculator. $$ \begin{array}{r} 84 \\ +7 \\ \hline \end{array} $$

In 1980 , there were 1,105,000 people between 30 and 34 years old enrolled in school. Round to the nearest million.

Another term for "visually displaying " is _____.

Find the sums and differences. $$ \begin{array}{r} 16,082 \\ +\quad 2,013 \\ \hline \end{array} $$

Use the numbers 15 and 8 to illustrate the commutative property of addition.

For the following problems, perform the subtractions. You may chedk each difference with a calculator. $$ \begin{array}{r} 74 \\ -33 \\ \hline \end{array} $$

For the following problems, perform the additions. If you can, check each sum with a calculator. $$ \begin{array}{r} 75 \\ +\quad 6 \\ \hline \end{array} $$

In 1980 , there were 29,100,000 reports of aggravated assaults in the United States. Round to the nearest million.

The whole numbers can be visually displayed on a ____.

Use the numbers \(6,5,\) and 11 to illustrate the associative property of addition.

For the following problems, perform the subtractions. You may chedk each difference with a calculator. $$ \begin{array}{r} 80 \\ -61 \end{array} $$

For the following problems, perform the additions. If you can, check each sum with a calculator. $$36+48$$

Graph (visually display) the following whole numbers on the number line below: 0,1,31,34 .

The number zero is called the additive identity. Why is the term identity so appropriate?

For the following problems, perform the subtractions. You may chedk each difference with a calculator. $$ \begin{array}{r} 350 \\ -141 \\ \hline \end{array} $$

For the following problems, perform the additions. If you can, check each sum with a calculator. $$74+17$$

Construct a number line in the space provided below and graph (visually display) the following whole numbers: 84,85,901,1006,1007 .

Find the sums and differences. $$ \begin{array}{r} 676,504 \\ -\quad 58,277 \\ \hline \end{array} $$

How many hundreds in \(46,581 ?\)

For the following problems, perform the subtractions. You may chedk each difference with a calculator. $$ \begin{array}{r} 800 \\ -650 \\ \hline \end{array} $$

For the following problems, perform the additions. If you can, check each sum with a calculator. $$486+58$$

Add the numbers. $$ \begin{array}{r} 769 \\ 795 \\ 298 \\ 746 \\ \hline \end{array} $$

Write 2,218 as you woul d read it.

For the following problems, perform the subtractions. You may chedk each difference with a calculator. $$ \begin{array}{r} 35,002 \\ -14,001 \\ \hline \end{array} $$

For the following problems, perform the additions. If you can, check each sum with a calculator. $$743+66$$

Add the numbers. $$ \begin{array}{r} 554 \\ 184 \\ 883 \\ \hline \end{array} $$

Round 506,207 to the nearest thousand.

For the following problems, perform the subtractions. You may chedk each difference with a calculator. $$ \begin{array}{r} 5,000,566 \\ -2,441,326 \\ \hline \end{array} $$

For the following problems, perform the additions. If you can, check each sum with a calculator. $$381+88$$

Add the numbers. $$ \begin{array}{l} 30,188 \\ 79,731 \\ 16,600 \\ 66,085 \\ 39,169 \\ 95,170 \\ \hline \end{array} $$

Find the sum of $$ \begin{array}{r} 482 \\ +\quad 68 \\ \hline \end{array} $$