Exam 1: Introduction to Real Numbers and Algebraic Expressions

Solve the problem. -The attendance at 3 games of a major sporting event fluctuated above and below the average according to the fol table. What was the net change from the average attendance after these three games? Game Gain/Loss in Attendance \#1 -3500 \#2 5911 \#3 4899

Write an inequality with the same meaning. - $32 \geq 30$

Simplify. - $- 6 + ( - 19 ) + ( - 11 ) + ( - 11 ) + 3 + ( - 6 )$

Subtract. - $- 7.1 - 12.9$

Convert to decimal notation. - $- \frac { 1 } { 8 }$

Convert to decimal notation. - $\frac { 5 } { 9 }$

Subtract. --18 - (-6)

Find the absolute value. - $| 230 |$

$\text { Insert } < \text { or } > \text { to write a true statement. }$ - $- \frac { 7 } { 4 } _ - \frac { 3 } { 4 }$

Find the absolute value. - $| - 9 |$

Substitute to find the value of the expression. -Traveling at $r$ kilometers per hour for thours, a driver will travel rt kilometers. How far will Danny travel in 10 hours at a speed of 79 kilometers per hour?

Subtract. - $\frac { 3 } { 7 } - \frac { 1 } { 7 }$

Translate the phrase to an algebraic expression. -Twice x

Add. Do not use a number line except as a check. - $- 9.3 + 5.3$

Evaluate. - $\frac { p } { q }$ , when $p = 14$ and $q = 2$

State the real number that corresponds to the situation. -One country exported $70,800,000 less than it imported, giving it a negative trade balance.

$\text { Insert } < \text { or } > \text { to write a true statement. }$ -9.06_- 9.09

Determine whether the statement is true or false. - $- 25 > - 5$

Solve the problem. -A football team gained 33 yards on one play, lost 31 yards on another, and gained 36 yards on the last play of the first half. They had already gained 383 yards during the half. What was the total yardage gain for the first half?

Graph the numbers on a number line. - $- 8 , - 6 , - 4 , - 2$