Conversions & Fractions + Ratios

1x each, perhaps practice on using a protractor!

What is the conversion factor from meters to cm?

1 m = 100 cm

How many centimeters are in 1 meter?

100 cm

Convert 180 cm to meters.

180 cm = 1.8 m

True or False: The kilometer is a unit of length that is too large to state the length of a pencil.

True

What is the length of a guitar in meters?

1 m

How many millimeters are in 1 meter?

1000 mm

What is the conversion from kilometers to meters?

1 km = 1000 m

What is the conversion from centimeters to meters?

1 cm = 0.01 m

1 paperclip is equivalent to…

a) 1g

b) 1mg

a

What type of angle is this?

Right, Obtuse, or Acute

Right

T/F - An obtuse angle can only be obtuse if it is exactly 180 degrees

F. more than 90, but less than 180.

What type of angle is this?

Right, Obtuse, or Acute

Obtuse

A ___ angle measures exactly 90°.

right

1 mph = ___km?

1.609

Is km distance or speed

distance

Reading a Protractor:

Do you read the bottom or top numbers if the angle opens to the LEFT?

Top number

1 yard is __ ft

3

1 yard is __ inches

36

Convert 162inches to yards. Show math.

162in * 1 yd/36 inch = 4.5yd

How many inches is in ONE FOOT?

12

1mm = ___ meter

0.001

1m = ____cm

100

1km = ____m

1000

Reading a protractor:

Do you read the top or lower numbers if the angle opens to the RIGHT?

lower

What formula is this? new-old/old

Percent increase

John's coach wants him to reduce his mile time by at least 2%. Currently, he can run a mile in 4 minutes and 45 seconds. About how many seconds shorter must his new mile be to satisfy his coach?

What would the first step be in this problem?

Convert minutes into seconds

• To make a dozen, each cupcake batch requires 3 cups of sugar and 1.5 cups of milk.

• How many cupcakes would you make if you had bake 9 cups of sugar 6 cups of milk?

How would you set up the first fraction? What is the numerator and denominator?

*The amount needed for one batch/dozen goes on the bottom (denominator).

9cups of sugar/ 3 cups of sugar

1mm = ____ cm

0.1 cm

1cm = ___m

0.01

1 km = ____ m

1,000

1m = ____ km

0.001

T/F - Skew lines refer to lines that you can’t see unless 3D.

F, lines that don’t intersect

16 lbs is __ oz

1

1mi = ____ inches

63360

1/4x=7 - how do you isolate for x?

multiply 7 by 4

Prefix to remember length

1,2,3,4

My Cat Makes Kites

Prefix to remember mass

1,2,3

My Giant Kangaroo

Prefix to remember volume

1,2

Mini Lakes