The answer to an addition number sentence
Sum
The answer to a subtraction number sentence
Difference
The numbers we add together in an addition number sentence
Addends
A polygon with 4 sides
Quadrilaterial
A part of a line that has two end points
Line segment
A polygon with 7 sides
Heptagon
A flat, 2D shape with straight sides
Polygon
A polygon with 5 sides
Pentagon
A polygon with 6 sides
Hexagon
An equal part of a whole
To put things into different groups
Classify
A polygon with 8 sides
Octagon
The top number in a fraction
Numerator
Any living thing(eg, plants and animals)
The bottom number in a fraction
Denominator
The ability for living things to live through difficult situations
Survival
A polygon with 9 sides
Nonagon
An animal that does not have a backbone
Invertebrate
A polygon with 10 sides
Decagon
An animal that has a backbone