$What\ is\ \sqrt{73}\ to\ the\ nearest\ integer?$  

 $2\cdot\left(-\frac{3}{9}\right)=\left(-\frac{3}{9}\right)\cdot2$  What property is illustrated?

What property is illustrated?
 $-2.1\cdot1=-2.1$  

 $0+x=x$  What property is illustrated?

What property is illustrated?

8 + 8.3 = 8.3 + 8

 $7\ +\left(4+5\right)=\left(7+4\right)+5$  What property is illustrated?

A square field has an area of 479 $ft^2$  .  What is the approximate length of a side to the nearest foot?

 $Which\ symbol\ goes\ between?\ \ \sqrt{70}\ _{\ldots\ }8\ \frac{1}{2}$  

Simplify using properties: (8 + 7x) + 4

Is this true or false? (ab)c = a(cb)

For all real numbers  $a$  and  $b$  ,  $2a\cdot b=a^2\ +\ b^2$  .   Is this true or false?  If false, show a counterexample.

To which of the sets of real numbers does 1.68 belong?

To which subsets of the real numbers does 22 belong? Choose all that apply.

To which subsets of the real numbers does  $\sqrt{42}\$  belong?  Choose all that apply.

 $-\sqrt{225}$  What is the