Writing algebraic expressions
Write an expression for the product of 3 and w.
What is 3w?
45 + m
45 plus a number m
the sum of 45 and m
What is an algebraic expression?
a mathematical expression with one or more variables, an operation, and numbers. It doesn't have an equal sign or answer.
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?
7n
7 times a number n
7 multiplied by a number n
the product of 7 and n
In a pattern, what are the terms?
Each number that is in the pattern
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?
q-13
a number minus 13
13 less than a number
the difference of q and 13
What is a conjecture?
a prediction about what may happen in a pattern
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)
x/15
a number divided by 15
the quotient of x and 15
What is an equation?
a mathematical sentence that has numbers, an operation, and an equal sign
(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(3+x)
5 times the a number plus 3
the product of 5 and 3 plus a number
5 multiplied by 3 and a number
What is a solution of an equation?
it is finding the value of the variable that makes the equation true.
(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?