Polygons
A four sided polygon is...
quadrilateral
81 rounded to the nearest ten is...
There are __mm in one cm.
10
1/4 +1/4 =
2/4 or 1/2
A nickel is worth...
5 cents
An eight sided polygon is...
Octagon
155 rounded to the nearest hundred is...
200
There are __ ounces in one pound.
16
1/9 + 4/9 =
5/9
3/4 O 1/3
3/4 is greater than 1/3
A six sided polygon is...
Hexagon
17 rounded to the nearest ten is...
20
There are __ inches in one foot.
12
4/8 + 1 =
1 4/8
7 dimes + 4 nickels =
90 cents
A five sided polygon is...
Pentagon
989 rounded to the nearest hundred is...
1,000
What unit of measurement would you use to measure your pencil?
Inch
3 5/6 + 3 =
6 5/6
60 mm = __ cm
6 cm
A ten sided polygon is...
Decagon
3,385 rounded to the nearest ten is...
3,390
There are ___ pounds in one ton.
2,000
2 4/6 + 3 2/6
6
We find the 'average' of a number by...
adding all the addends, and dividing by how many there are