Very Easy
5-sided shape
pentagon
The answer to an addition problem
sum
The continuous curve that makes a circle
boundary
6-sided shape
hexagon
The answer to a subtraction problem
difference
the measurement around a circle's boundary
circumference
8-sided shape
octagon
The answer to a multiplication problem
product
7-sided shape
Septagon or Heptagon
The answer to a division problem
quotient
top number of a fraction
numerator
The measurement of the space inside a shape
Area
bottom number of a fraction
denominator
The measurement of the space an object takes up in the real world
Volume
The corner or point of a shape/object where edges meet
vertex
2 angles that add up to 90°
complementary
in the equation 7 x 4 = 28, what is the proper term for the 7 and the 4?
factors
Same length or measurement
congruent
2 angles that add up to 180°
Supplementary
a letter from the alphabet used in place of an unknown number
variable