Exam 7: Signed Numbers

Give a written response. -You are given information about three numbers, which you are to arrange from smallest to largest. Number A: sign is positive; Absolute value is: 3.1 Number B: is a number which is neither positive nor negative Number C: sign is negative; Absolute value is: 3.4 What will the order be? Explain.

Add. - $(-18)+2+(-1)+21$

Determine the sign and the absolute value of the number. - $-\frac{7}{11}$

Multiply. - $-4(-24)$

Decide if the inequality is correct. - $4.3<4.5$

Find the product. - $(-1)^{4}$

Simplify. - $\frac{-19}{18}$

Combine. - $-6+16-(-3)-14+18$

Solve. -In 13 weeks, the value of Bob Treatman's day trading account decreased by $\$ 520$ . What was the average weekly change in the value of the account expressed as a signed number?

Find the opposite of the number. --4

Simplify. - $\frac{-1}{-16}$

Add. - $-19+34.69+(-56.17)$

Add the numbers using the number line. - $-9+(-8)$

Find the opposite of the number. --2.9

Add. Do not use a number line except as a check. - $5 \frac{1}{5}+\left(-\frac{4}{5}\right)$

Find the larger number. -4 and -2

Divide. - $-\frac{3}{8} \div\left(-\frac{1}{5}\right)$

Find the opposite of the number. - $\frac{4}{9}$

Add. - $(-2)+8+(-1)+7+(-8)$

Evaluate. - $2+(-12)-(-14)$