1.	Simplify 1 Simplify the following expression: $$ \left(1(-4) + 4\times5\right)2\times1(-1) $$ Correct Answer $$ -32$$ or -32.0000

2.	Simplify 2 Simplify the following expression: $$ \frac{2\times6\times2}{\left(5 + 4\right)\frac{3}{4}} $$ Correct Answer $$ \frac{32}{9}$$ or 3.55556

3.	Fractions 1 Simplify the following expression: $$ \frac{6}{5} + \frac{1}{3} $$ Correct Answer $$ \frac{23}{15}$$ or 1.5333333333333332

4.	Fractions 2 Simplify the following expression: $$ \frac{\frac{5}{5}}{\frac{-5}{2}} $$ Correct Answer $$ \frac{-2}{5}$$ or -0.4

5.	Significant figures 1. Write the following to 5 significant figures: 0.0010280562 Correct Answer 0.0010281 or $$1.0281\times10^{-3}$$ 2. Write the following to 4 significant figures: 89.923756 Correct Answer 89.92 or $$8.992\times10^{1}$$

6.	Standard Form 1. Write the following in standard form to 4 significant digits: 9.24121 Correct Answer $$9.241\times10^{0}$$ 2. Write the following in standard form to 3 significant digits: 0.140701 Correct Answer $$1.41\times10^{-1}$$

7.	Significant figures 1. Write the following in preferred standard form to 3 significant digits: 0.01883 Correct Answer $$18.8\times10^{-3}$$ 2. Write the following in preferred standard form to 4 significant digits: 8488.68 Correct Answer $$8.489\times10^{3}$$

8.	Simplify 2 Simplify the following expression: $$ 2\times5(-4) - \frac{(-(-5))}{6 - -3} $$ Correct Answer $$ \frac{-365}{9}$$ or -40.5556

9.	Simplify 1 Simplify the following expression: $$ \left({6}^{2} - 5\times1\right)2\times1(-5) $$ Correct Answer $$ -310$$ or -310.000

10.	Simplify 2 Simplify the following expression: $$ \left(-3 - 3\right)\left(-5 - 3\right) - 2\frac{2}{3} $$ Correct Answer $$ \frac{140}{3}$$ or 46.6667