Single Variable
X-5=4
x=9
X+Y=9
X=3 Y=?
Y=6
3+4x2=?
11
If Bob has 180 apples and he gave Sarah 40 apples. How many apples would he have left?
Bob would have 140 apples left (Keep your answers)
Worth of something
Value
X+20=46
X=26
X-30=Y
X=42 Y=?
Y=12
7x(3+2)=?
35
If Mr. Adam has 103 students and he gave Ms. Mel 82 students. How many students will Mr. Adam have?
Mr. Adam would have 21 students! (Keep your answers)
Making a number bigger
Increase
X:3=6
X=18
61-X=Y
X=? Y=40
X=21
(3x3)+(4x3)=?
21
If a lizard has 100 airpods, and he wants to give all the grade 6 an airpod each. There are 4 classes, each class has 21 students. How many would the lizard have left?
The lizard would have 16 airpods left
Making a number smaller
Decrease
X:5=95
X=19
75:X=Y
X=3 Y=?
Y=25
40
Oh no! Bob dropped the extra apples from last time. Bob dropped 1/5 of them. How many apples does Bob have left right after dropping the apples?
Bob now has 112 apples!
a quantity representing the power to which a given number or expression is to be raised, usually expressed as a raised symbol beside the number or expression (ex. 23 = 2×2x2).
Exponents
3X+5=32
X=9
21xX=Y
X=36 Y=?
Y=756
(4x4+(37-21))-17=?
15
Ms. Mel has too many students so she gave away 57 students to Ms. Carmela. Ms.Carmela already has 83 students so she gave Mr. Nick 57 students but he threw away 1/3 to Mr. Adam. How many students does Mr. Adam have now?
Mr. Adam has 40 students now
a quantity which during a calculation is assumed to vary or be capable of varying in value.
Variable