Solving Equations and Systems in 8th Grade Math

What is the primary focus of the 8th grade mathematics final exam review?

• Common core mathematics topics

• Algebra and geometry

• Basic arithmetic operations

• Advanced calculus

Tags

CCSS.8.EE.C.7B

How do you solve an equation with a variable divided by a negative number?

• Divide by the negative number

• Multiply by the negative number

• Subtract the negative number

• Add the negative number

Tags

CCSS.6.EE.B.7

What is the correct step to isolate a variable added by a number?

• Multiply by the same number

• Subtract the same number

• Divide by the same number

• Add the same number

Tags

CCSS.6.EE.B.7

What is the point-slope form used for in mathematics?

• Determining the volume of solids

• Solving quadratic equations

• Writing equations of lines

• Calculating the area of shapes

If Emma had $40 on a gift card and after purchasing five programs had $30 left, how much does one program cost?

• $2

• $5

• $8

• $10

Tags

CCSS.7.EE.B.4A

What method can be used to solve a system of equations where one equation is already solved for a variable?

• Elimination

• Graphing

• Substitution

• Matrix method

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

How do you write 62,000 in scientific notation?

• 62 x 10^3

• 6200 x 10^1

• 6.2 x 10^4

• 620 x 10^2

What is the first step in solving an equation with a variable multiplied by a fraction?

• Divide by the fraction

• Add the fraction

• Multiply by the reciprocal of the fraction

• Subtract the fraction

Tags

CCSS.6.EE.B.7

What is the result when you add two integers with different signs?

• Always a positive number

• Zero

• Always a negative number

• A number with the sign of the integer having the higher absolute value

Tags

CCSS.7.NS.A.1C

What does the slope of 2 indicate in a point-slope form equation?

• The line falls at a rate of 2 units

• The line rises at a rate of 2 units per step right

• The line is horizontal

• The line is vertical

Tags

CCSS.8.EE.B.5