# 8th Grade Math - Expressions and Equations

## CCSS Practice

This quiz illustrates the range of difficulty expected by the following Common Core State (CCS) standards:

 Question Common Core Standard # 1 8.EE.1 2 8.EE.2 3 8.EE.3 4 8.EE.4 5 8.EE.4 6 8.EE.5 7 8.EE.6 8 8.EE.7a 9 8.EE.7b 10 8.EE.8b

Question 1:

Question 2: What are the solutions of the equation x2 = 81 ?

Question 3: An insect is 20mm long. If you put such insects in a line, how long is a line made with 10 million of them? Express the result in kilometers.

Question 4: The average growth rate of human hair is equal to 4×10-4m/day. At this rate, a hair grows 8mm in days.

Question 5: 2.1×10-5 + 0.038×10-3 + 0.41×10-4 =

Question 6: Two vehicles travel with constant speeds. Vehicle A speed is given in the graph below, while vehicle B speed is given by the equation vB = 61.2×t, where vB is measured in miles/hour and t is measured in hours.

The faster of the two vehicles is .

Question 7: What is the equation of the line m shown in the coordinate plane below?

Question 8: The equation 2x + 7 + x = 4x - x + 25 has .

Question 9: Solve the following linear equation:

Question 10: Solve the following system of linear equations:

y = 3x
y - x = 1

Press the Submit button to see the results.