How many terms are in the following expression: 2x-3y+5-3x-8+2
6 terms
Simplify the expression. 7x+11x
18x
Simplify. 4(q+1)
4q+4
Simplify. 4(a-6)+19
4a-5
Name the error, correct the error
2(3x-4)
2(6x-8)
2+6x-8
10+6x
Distribution error.
Added the 2 after distributing it.
6x-8
Explain the difference between an expression and an equation
An expression can be simplified but cannot be solved (no equal sign) and an equation you can solve for (has an equal sign)
Simplify the expression. 9k-12k+5k
2k
Simplify. -4(q+7)
-4q-28
Name the error, correct the error
4+3(2y-5)
7(2y-5)
14y-35
Order of operations error, added before distributing(multiplying)
6y-11
Explain the difference between unknowns and variables
and unknown has one answer we can solve for. a variable is an unknown with a relationship to other unknowns. It changes together.
Simplify the expression. 8s-11s+6s
3s
Simplify. -8x+12-8x+15+15x-22-x
-2x - 5
Name the error, correct the error
Numeracy error with integers.
What are the coefficients in the following expression: 7+4p-5+p+2q
4, 1 and 2
Simplify the expression. 8a+4a-9a+2a
5a
Simplify. -3(4x-10)
-12x+30
Find Perimeter
6x+5+6x+5+3x+3x
18x+10
Name the error, correct the error
Did not reorder alphabetically
How many terms are in the expression: 1.4y+5-4.2-5y+z-10
6 terms
Simplify the expression. 25v-29v+14v+22v+15v
47v
Find Perimeter
2x+5+3x+2+6x-17
11x+5+2-17
11x+10
They forgot the side labeled x.
12x+10