Math 8 GMAS Review Day 1

Math 8 GMAS Review

Day 1

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By Laphenetra Allen

8NS1 ​Irrational Numbers

Subject | Subject

Some text here about the topic of discussion

​I can identify irrational and rational numbers. I can justify why a number is irrational or rational.

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​I can justify why a number is irrational or rational.

​8NS1 Irrational Numbers​

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Multiple Choice

Is the following number rational or irrational? $$\sqrt[]{99}$$  

• rational

• irrational

Multiple Choice

Between which two whole numbers does the $$\sqrt[]{89}$$  lie?

• between 4 and 5

• between 7 and 8

• between 8 and 9

• between 9 and 10

Multiple Choice

Which point on the number line best represents $$\sqrt[]{50}$$  ?

• point W

• point X

• point Y

• point Z

Multiple Choice

Which point on the number line below represents $$\sqrt[]{11}$$  ?

• point A

• point B

• point C

• point D

​8EE1 Exponents​

8EE1 Exponents

Subject | Subject

Some text here about the topic of discussion

​I can evaluate expressions containing exponents.

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I can write repeated factors using exponential notation.

Multiple Choice

Which shows $$5^4$$  in standard form?

• 20

• 625

• 1,024

• 3,125

Multiple Choice

Which is $$6^{3\ }$$  x $$\ 6^4$$  in exponential form?

• $$36^{12}$$  

• $$7^6$$  

• $$6^{12}$$  

• $$6^7$$  

Multiple Choice

Which shows $$\left(2^2\right)^{-2}$$  in standard form?

• 0

• $$\frac{1}{16}$$  

• $$\frac{1}{8}$$  

• 1

Multiple Choice

Which shows $$6^{-1\ \ }\div\ 6^{-4}$$  in exponential form?

• $$6^{-5}$$  

• $$6^{-3}$$  

• $$6^1$$  

• $$6^3$$  

​8EE2 Square Roots and Cube Roots​

​Square Roots & Cube Roots

Subject | Subject

Some text here about the topic of discussion

​​I can find the square root of a perfect square and perfect cube.

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​I can estimate the value of non-perfect squares based on known perfect squares.

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Multiple Choice

What is the value of $$\sqrt[]{100}$$  

• 4

• 10

• 25

• 50

Multiple Choice

What is the value of $$\sqrt[3]{27}$$  

• 3

• 9

• 5

• 13.5

Multiple Choice

Solve for x

$$x^2$$  = 256

• x = 6

• x = 15

• x = 16

• x = 128

Multiple Choice

Solve for y.

$$y^3$$  = a

• $$y\ =\ a^3$$  

• $$y\ =\ \frac{a}{3}$$  

• $$y\ =\ \sqrt[]{a}$$  

• $$y\ =\ \sqrt[3]{a}$$  

​8EE3 Scientific Notation​

Multiple Choice

What is 0.000058 written in scientific notation?

• $$5.8\ \times\ 10^{-6}$$  

• $$5.8\ \times10^{-5}$$  

• $$5.8\ \times10^5$$  

• $$5.8\ \times10^6$$  

Multiple Choice

The area of Texas is about $$2.7\ \times10^5$$  square miles. The area of Virginia is about $$4.3\ \times\ 10^4$$  square miles. About how much greater is the area of Texas than Virginia?

• $$1.6\ \times\ 10^1$$  square miles

• $$1.6\ \times\ 10^5$$  square miles

• $$2.3\ \times10^4$$  square miles

• $$2.3\ \times10^5$$  square miles

Multiple Choice

In 2015, the national debt of Hong Kong was recorded at $$1.14\ \times10^{11}$$  U.S. dollars. The U.S. national debt was about 158 times greater than Hong Kong's. What is the U.S. national debt?

• $$1.4\ \times10^{11}$$  

• $$1.8\ \times10^{11}$$  

• $$1.4\ \times10^{13}$$  

• $$1.8\ \times10^{13}$$