Expressions
4 more than a
What is a + 4 or 4 + a?
an incomplete number sentence without an equal sign
What is an expression?
3x = 39
What is 13?
Solve the equation.
3x = 20 - 8
What is "x" = 4?
Jay has a pack of "d" baseball cards. He gives 7 of them away. How many baseball cards does Jay have left?
What is d - 7?
14 less than i
What is i - 14?
a complete number sentence stating that two expressions are equal to each other
What is an equation?
2x - 5 = 11
What is 8?
multiply "r" by 8 then add 1
What is 8r + 1?
There are "t" pencils in a pack. I buy 7 packs. How many pencils did I buy?
What is 7t?
multiply t by 4 then add 6
What is 4t + 6?
letters that represent an unknown amount
What is a variable?
x - 7 = 12 + 12
What is 31?
X6 When "X" = 2
What is 64?
There are 37 blue and red marbles in a bag. "S" marbles are red. How many are blue?
What is 37 - S?
halve p and then subtract 8
What is 1/2p - 8?
a number sentence made up of a combination of numbers, variables and operations
What is an algebraic expression?
4 (x + 2) = 48
What is 10?
Solve the equation.
12 - (2x5) = x
What is "x" equals 2?
In a class of 30 children, there are "g" girls. What fraction of the class are girls?
What is g/30?
multiply u by itself and add 9
What is u2 + 9?
combining like terms to make a more compact expression. Ex. 5n + 7 + 4n = 9n + 7
What is simplify?
1/2x + 27 = 36
What is 18?
Solve the equation.
(30 - 12) x (20 รท 10) = x
What is "x" equals 36?
I cut a long piece of wood into 50cm pieces. I cut "w" pieces of wood and there is 20cm left over. How long was the wood to start with?
What is 50w + 20cm?