Adding Decimals
2.3 + 5.4 = ?
7.7
8.40 - 3.30 = ?
5.10
What shape is being described?
Any polygon with four sides.
A Quadrilateral
What shape is being described?
A polygon with three sides equal in length and three angles equal in size.
An Equilateral Triangle
12.09 + 5.3 = ?
17.39
28.7 - 5.3 = ?
23.40
What shape is being described?
A quadrilateral with exactly two pairs of parallel sides.
A Parallelogram
What shape is being described?
A polygon with at least two sides equal in length and at least two angles equal in size.
An Isosceles Triangle
1.90 + 5.60 = ?
7.50
8.2 - 1.9 = ?
6.3
What shape is being described?
A parallelogram that has 4 sides the same length.
A Rhombus
What shape is being described?
A polygon with no sides equal in length and no angles equal in size.
A Scalene Triangle
13.90 + 7.03 = ?
20.93
18 - 10.85 = ?
7.15
What shape is being described?
A parallelogram that has at least two sides the same in length and four right angles.
A Rectangle
I drew a triangle that has two arms that are each 10cm long. I then drew a third arm to connect them. What type of triangle did I draw?
An Isosceles Triangle
7 + 14.35 + 11.2 = ?
32.55
21 - 15.2 = ?
5.8
What shape fits under the definition/category of a rhombus AND a rectangle?
A Square
Draw and label one equilateral triangle, one isosceles triangle, and one scalene triangle.
(show Mrs.Carlin)