Adding Signed Numbers: Practical Problems: Temperature and Distance
This clip provides two short exercises, one dealing with temperature changes, the other with changes in direction, to illustrate how to solve practical problems involving the addition of signed numbers.
Adding Fractions With the Same Denominator: Adding Mixed Numbers
This clip explains how to add mixed numbers. One method is to add the whole numbers and the fractions separately and combine the results. Another approach is to convert the mixed numbers to improper fractions, then add as usual, and then change the ...
Adding and Subtracting Decimal Fractions: Summary: Adding and Subtracting Decimal Fractions
This clip summarizes the main points of adding and subtracting decimal fractions. It revisits the idea that adding decimal fractions depends on lining up the addends by place value. The clip says that the easiest way to do this is by lining up the d...
Adding and Subtracting Decimal Fractions: Lining Up Numbers on the Decimal Point
This clip explains the importance of lining up the addends by place value when adding decimal fractions. It notes that every decimal fraction has a decimal point and, "
if we line up one column, all the rest line up automatically. Tens, units, tent...
Adding and Subtracting Decimal Fractions: Subtracting Decimal Fractions
This clip explains that, as with adding decimal fractions, subtracting decimal fractions entails following a five-step process. The only difference, the clip points out, is that we subtract instead of add. The clip stresses that it's important to ma...
Adding Signed Numbers: Summary: Adding Signed Numbers
This clip summarizes how to add signed numbers. It reviews two important rules, one pertaining to addition when the addends have the same sign, the other to addition when the addends have different signs. The clip also revisits the addition of 3 or ...
Weight and Temperature: Fahrenheit, Celsius and Formulas for Temperature Conversion
This clip introduces the measurement of temperature, explaining the terms Fahrenheit and Celsius in the process. The clip also explains how to convert from one to the other. "To convert from Celsius to Fahrenheit," the clip states, "
we use the for...
Weight and Temperature: Summary: Weight and Temperature
This clip reviews the key points in the lesson on weight and temperature, including conversion between the U.S. Customary System and the Metric System, as well as conversion between Fahrenheit and Celsius.
Subtracting Fractions: Comparing Fractions With the Same Denominator
This clip explains that if two fractions have the same denominator, the number with the bigger numerator will be to the right of the other on the number line.
Subtracting Fractions: Subtracting Fractions With Different Denominators
This clip explains that subtracting fractions with different denominators requires first writing the two fractions with a common denominator. Once the numerators are determined, it is simply a matter of subtracting the smaller from the larger and ex...