Math Rules
__________ measures how long something is.
Length
Convert centimeters to millimeters.
x 10
What denominator makes a percent?
100
How many faces does a prism have?
2 faces
Write the decimal and percent for the fraction 28/400.
28/400 --> divide by 4 --> 7/100 =
7%
.07
________ measures how heavy something is.
Weight
Convert meters to centimeters.
x 100
What do we call 100%?
1 whole
What does a connector connect?
2 Faces
Fah had 87.32 kg of balloons. She divided them equally into 10 bags. How many grams of balloons were in each bag? Give your answer in grams.
87.32 / 10 = 8.732 kg
8.732 kg x 1000 = 8732 grams
When we go from small to big units, we _________
divide
x 1000
What do we call 50%?
one half
If a prism's face has 3 sides, how many connectors does it have?
3 connectors
Kong has 500 cats. 30% of them are cute. How many cats are cute?
30/100 x 500 =
30 x 5 = 150
150 cats
When we go from big to small units, we _________
multiply
Convert kilograms to grams
x 1000
What do we call 25%?
one quarter
Name of the prism =
shape of face
600/2000 x 100%
600/20 = 30
30%
What are the 3 steps to make a percent?
1) make a fraction
2) change denominator to 100
3) change to percent
Convert meters to kilograms
CANNOT! :)
Find 80% of 90
72
What is the face of a quadrangular prism?
quadrilateral
Monika bent a piece of wire 8.4 meters long into the shape of a rectangle. The width of the rectangle is 75 centimeters long. What is the length of the rectangle? Give your answer in centimeters.
8.4m x 100 = 840 cm
75 x 2 = 150
840-150 = 690
690 / 2 = 345
length = 345 cm