Metric Units

 Metric Units

mm= millimeter               10 mm= 1 cm

cm= centimeter               100 cm= 1 m

m= meter                        1000 m= 1 km

km= kilometer

13 mm + 24 cm in lowest terms.

Well, if you know there are 10 millimeters in 1 cm you can solve the problem.

13 + 24 = 37. Well, you can make 30.

You have 7 left over.

So, your answer is 30 cm and 7 millimeters.

Another Way to Remember


You can make flashcards to help you remember.  How did you start to learn these?

Metric Capacity 

milliliter (mL)               1,000 mL = 1 L

liter (L)                          250 mL = 1 metric cup

kiloliter (KL)                  4 metric cups = 1L

                                       1,000 L = 1 KL


Metric Mass 

milligram (mg)           1,000 mg = 1 g
 
gram (g)                      1,000 g = 1 kg

kilogram (kg)
                                 


Metric Comparing Practice

Customary Units

Customary Lengths

in= inch               12 in.= 1 ft

ft= foot                3 ft.= 1 yd

yd = yard              5,280 ft.= 1 mi

mi= mile               1,760 yd.= 1 mi

 You would use this information in a problem like this,

13 ft + 15 ft.

Well, 13 ft + 15 ft  = 28 ft


So, if you know 12 inches are in 1 foot you know that 24 inches is 2 feet.


Now, you have 4 inches left.


So your answer is 2 feet and 4 inches.

Another Way to Memorize 

You can make flashcards to help you memorize.

 

Before you do though how do you memorize?

Customary Capacity

Ounces (oz)               8 oz= 1 c

Cups (c)                      2 c= 1 pt

Pints (pt)                      2 pt= 1 qt                 

Quarts (pt)                   4 qt= 1 gal

Gallons (gal)



Customary Comparing Practice

Pi

Pi is a number you use to find the area and circumference of a circle.

Pi measures 3.14 in use of circumference and area of a circle.

  The formula for the area is . r = radius.

  The diameter is all the way across.

  The radius is half the diameter.

  So, you have this problem, Find the area, so say they give you the diameter which is 4.

  So, half the diameter is the radius.

 So, the radius is 2.

 So, your problem is 3.14 x 2 2.

So, your answer in this case is 6.28 2.

The formula for the circumference is  . 

So, say you have the problem, Find the circumference.


They give you the diameter which is 8.


So, you know your radius is 4. 


Your problem is 2 x 3.14 x 4.


So, your answer is 25.12




Pi Practice

Integers

Integers are all numbers meaning negative and positive numbers.

So, say you have the problem -5 - +7.

So, now your problem is -5 + -7.

So, -5 taken away from -7 is +2.

To go to game click on the link below.


Fun Integer Game