Get Ready 1

$$20-0.16$$

$$12.2+\left(-8.45\right)$$

$$\frac{1}{4}-\frac{2}{3}$$

$$\frac{3}{5}+\left(-6\right)$$

$$-7\frac{1}{2}+5\frac{1}{3}$$

$$-11\frac{5}{8}-\left(-4\frac{3}{7}\right)$$

$$\left(0.15\right)\left(3.2\right)$$

$$2\div\left(-0.4\right)$$

$$-4\div\frac{3}{2}$$

$$\left(\frac{5}{4}\right)\left(-\frac{3}{10}\right)$$

$$\left(-2\frac{3}{4}\right)\left(-3\frac{1}{5}\right)$$

$$7\frac{1}{8}\div\left(-2\right)$$

Angela has $ $$\text{11.56}$$ . She spends $ $$4.25$$ on lunch. How much money does Angela have left?

$$2^3$$

$$5^3$$

$$\left(-7\right)^2$$

$$\left(-1\right)^3$$

$$\left(-0.8\right)^2$$

$$-\left(1.2\right)^2$$

$$\left(\frac{2}{3}\right)^2$$

$$\left(\frac{5}{9}\right)^2$$

$$\left(-\frac{4}{11}\right)^2$$

In a family tree, you are generation "now." One generation ago, your 2 parents were born. Two generations ago your 4 grandparents were born. How many ancestors were born five generations ago?