Writing expressions from words
The product of x and 7
7x
5 + 0 = 5
Identity Property of Addition
Stephen walks 9 miles and then another 8 miles. Write an expression for how many miles he walked in total.
9 + 8 miles
4 + 5 + x
9 + x
x = 3
2x
6
5 less than y
y - 5
2(3x) = (2*3)x
Associative Property of Multiplication
Ms. Huszar buys bagels for the teachers for 2 dollars each. Write an expression for how much Ms. Huszar spends.
2t t = teachers
3y + 3 + 2y
5y + 3
y = 6
2y2
the sum of 3 and the product of 4 and y
3 + 4y
x + y + z = y + x + z
You need to divide your class into 7 groups. How many people are in each group?
c / 7
x + y + 7
x + y + 7
z = 24
z divided by 4 plus 2
8
The quotient of a number and 6 plus 9
5( x - 2) = 5x - 10
Distributive Property
You have 9 math worksheets and complete some of them. How many do you have left to do if you completed 5.
4 worksheets left
2a + 3a - a
4a
a = 2 b = 2 c = 2
a + b - c2
0
5 times the sum of a number and 9
5(x+9)
(1 + 3) + 2 = (2 + 3) +1
Associative and commutative property of addition
You have 30 pieces of candy, you give 3 pieces to each of your friends. Write an expression for how much candy you have left.
30 - 3f
f = number of friends
2(3w - 2) +4w +5
10w + 1
x = 1 y = 2
3x3+x2y
5