Decimal Operations with Negatives & Word Problems

Front

What is a decimal?

Back

A decimal is a fraction expressed in a special form, where the denominator is a power of ten, represented with a decimal point. For example, 0.5 is a decimal representation of the fraction 1/2.

Front

How do you add decimals?

Back

To add decimals, align the numbers by the decimal point and add as you would whole numbers, placing the decimal point in the sum directly below the other decimal points.

Front

How do you subtract decimals?

Back

To subtract decimals, align the numbers by the decimal point and subtract as you would whole numbers, placing the decimal point in the difference directly below the other decimal points.

Front

What is the process for multiplying decimals?

Back

To multiply decimals, multiply the numbers as if they were whole numbers, then count the total number of decimal places in both factors and place the decimal point in the product accordingly.

Front

How do you divide decimals?

Back

To divide decimals, move the decimal point in the divisor to the right until it is a whole number, then move the decimal point in the dividend the same number of places and divide as usual.

Front

What does it mean to share equally?

Back

To share equally means to divide a total amount into equal parts so that each person receives the same amount.

Front

If June has 1.32 pounds of candy and shares it with 3 friends, how much does each person get?

Back

Each person receives 0.33 pounds of candy.

Front

How do you calculate the cost per person when splitting a bill?

Back

To calculate the cost per person, divide the total bill by the number of people sharing the cost.

Front

If a dinner bill is $85.30 and there are 5 people, how much does each person pay?

Back

Each person pays $17.06.

Front

What is the total amount of money Larry had if he spent $64.90 and has $3.96 left?

Back

Larry had $68.86 to begin with.