definition and rules
what is the definition of unit of measurement ?
A system you use to describe how big or small something is
The unit of measurement chances depending on what you are measuring.
60 minutes =_________hr
1 hr = 60 minutes, so the answer is one
which is bigger? a centimeter or an inch
An inch
which is smaller ? a quart or a pint
A pint
which is bigger? a pound or a ton
A ton
what is the definition of length?
the measurement of something( an object) from end to end.
5 days = _____hrs
1 day = 24hrs
5 days = 5 x 24 = 120 hrs
what is the conversion for yards to feet?
1 yard = 3 feet
what is the conversion for liter to milliliter?
1 liter = 1000 milliliter
what objects in real life can be measured in pounds?
flour , sugar, person etc
what is the difference between volume and capacity?
Volume: the amount of space that an object or substance occupies.
Capacity: How much a container can hold
Difference: A solid and hollow object can have a volume but only a hollow object can have a capacity
13 weeks = _____ days
1 week = 7 days
13 weeks = 13 x 7 = 91
millimeter, centimeter, inch, foot/feet, yard, meter, kilometer, mile
1 gallon = ____cups
1 gallon = 16 cups
2 kg = ______grams
1kg= 1000grams
2kg = 2 x 1000 =2000
what are the 4 steps to solving a conversion problem
eg. 3 cm = ________ mm
1. Look at the units in the problem
2. Find those units in the conversion table and write the conversion under your problem.
3. Decide which of the 2 rules you should use
4. Solve the problem
If Maciry is 4 decades old, how old is he in years?
1 decade = 10 years
4 decades = 4 x 10 = 40 years
36 feet = ______inches
1 foot = 12 inches
36 feet = 36 x 12 = 432 inches
16 pints = ______quarts
1 quart = 2 pints
16 pints = 16 divided by 2 = 8quarts
6000 lbs = _______tons
1 ton = 2000 lbs
6000 lbs = 6000 divided by 2000 = 3 tons
what are the two rules for measurement conversion?
rule one : if we are going from a big unit to a small unit, we will multiply/times.
rule two: if we are going from a small unit to a big unit, we will divide.
A baby is 2 years old. How many days has he been alive?
1 year = 365 days
2 years = 2 x 365 = 730 days
2 miles = ______yards
1 mile = 1760 inches
2 miles = 2 x 1760 = 3520
2 gallons = _______quart
1 gallon = 4 quarts
2 gallons = 2 x 4 = 8 quarts
5 pounds = ____ounces
1 pound = 16 ounces
5 pounds = 5 x 16 = 80 ounces