91Ó°ÊÓ

In Exercises \(51-60,\) fill in as many of the following ordering symbols as make the statement true. Choose from \(<, \leq,>, \geq,=, \neq\). \(1 \cdot 2\)_____1 + 2.

Explain how you could use the commutative and/or associative properties to make the following computations easier to do. (a) \(-1.7+12.9-8.3\) (b) 10( 7)\((-2.3)\) (c) \(\frac{-10(3.2)}{-1.6}\) (d) \(-30\left(\frac{1.6}{3}\right)(-10)\)

Evaluate each of the following expressions, if possible. $$\frac{-28}{-4}-\frac{-32}{-8}$$

In Exercises \(1-66,\) compute the value of each expression. $$-63+(-28)$$

In Exercises \(1-66,\) compute the value of each expression. $$-29+(-31)+51$$

Evaluate the given expression. Remember to follow the order of operations. $$7+3 \cdot 4$$

In Exercises \(51-60,\) fill in as many of the following ordering symbols as make the statement true. Choose from \(<, \leq,>, \geq,=, \neq\). \(6 \cdot 0\)_____6 + 0.

Try to find an approximate value for a square root of \(3 .\) That is, try to find a number that when multiplied by itself gives a product of \(3 .\) Give answers correct to the nearest whole number, nearest tenth, nearest hundredth, and nearest thousandth. Use a calculator to help with the multiplication, but not to compute the square root itself.

In Exercises \(1-72\), compute the value of each expression. $$-8-(-8)$$

Evaluate each of the following expressions, if possible. $$\frac{-44-16+80}{-5}$$