Writing algebraic expressions
Write an expression for the product of 3 and w.
What is 3w?
The sum of 27 and a number n.
27 + n
Name all the terms: 2n+4x-8
2n,4x,8
3a-2 when a=7
3(7)-2 = 19
Evaluate when p = 6. p + 9
What is 15?
Write an expression for w less than 8.
What is 8 - w?
Twice a number x
2x
Name all the constants: 3x+7+4y-2
7 and 2
p/4 + 3 when p = 24
24/4 + 3 = 9
Evaluate the expression for 31 - g when g is 3.
What is 28?
Write an expression for the difference of twice p and 9.
What is 2p - 9?
13 less than a number q.
q-13
Name all the variables: 3xy+8x-9+2a
x, y, a
7(n+4) when n=8
7(8+4) = 84
Evaluate the expression for 4w when w is 13.
What is 52?
Twice the difference of 6 and x
2(6-x)
the quotient of a number and 4.
n/4
Name all the coefficients: x+3y-4z
1, 3, 4
(30/b) + 9 when b =6
(30/6)+9=14
Evaluate the expression 2rz - 9 when r is 2 and z is 5.
What is 11?
Write an expression for the difference of r and 8 times 9.
What is the difference of 9(r - 8) or (r - 8) * 9?
5 times the sum of 3 and x
5(3+x)
Name all the coefficients: 2x+3(y)-x
2, 3, 1
(24/4 -c) * a when a=5 and c=1
(24/4 - 1) * 5 = 25
Evaluate the expression 3(x + 4) - w, when x is 3 and w is 8.
What is 13?