Terminology
Is this an expression or equation?
3x + 2 = 8
equation
Write an expression for "the sum of x and y"
x+y
2a + 3a
5a
a = 6
Which is bigger?
100g or 1kg?
1kg
How many variables are there in this expression?
4a + 3b - 2c
3
a + b
5
8f - 5f
3f
3a + 2 = 11
a = 3
Substitute a = 4 and simplify:
2a + 1
9
How many terms are there in this equation?
3a + 4b = 2c
3
Write an expression for 5 times b plus 3
5b + 3
4a + 3b + 2a - 2b
6a + b
5 = 2a - 3
a = 4
Write a joke on your whiteboard. If it's funny / makes sense - you get the points.
:)
Is this a term, expression, or equation?
3a
term
Simplify is a=2, b=3, c=1
ab + 2c
8
2a + 3b + 4ab
2a + 3b + 4ab
a/3 + 1 = 4
a = 9
The sum of a number (x) and 4 is multiplied by -2, and the answer is -22.
Write an expression for this.
-2(x + 4) = -22
Write an equation with at least three terms and two different variables
e.g. 2a + 3b = 54
Write an expression for what Mr Young scored, using x:
In a netball game, Jess scored x goals. Fred scored 3 more than Jess. Mr Young scored double as much as Fred.
2(x+3)
4abc + 2ab + 3b - 2abc + 3c + 4ab
2abc + 6ab + 3b + 3c
3(a + 2) = 21
a = 5
List at least 5 different towns/suburbs in Tasmania
Taroona, Kingston, Blackmans Bay, Hobart, Sandy Bay, South Hobart, West Hobart, North Hobart, New Town, Cygnet, Dover, Huonville, Glebe, Dynnyrne, ...