Positive & Negative Decimal Operations - Problem Solving

Front

What is the result of adding a positive number to a negative number?

Back

The result depends on which number is larger; if the positive number is larger, the result is positive, and if the negative number is larger, the result is negative.

Front

How do you determine the balance left on a gift card after making purchases?

Back

Subtract the total amount spent from the initial balance on the gift card.

Front

What is the process for multiplying decimals?

Back

Multiply the numbers as if they were whole numbers, then count the total number of decimal places in both numbers and place the decimal in the product accordingly.

Front

How do you convert ounces to pounds?

Back

There are 16 ounces in a pound, so divide the number of ounces by 16 to convert to pounds.

Front

What happens to the decimal point when you divide by a power of ten?

Back

The decimal point moves to the left for each zero in the power of ten.

Front

What is the height of a plant if the tallest plant is 2.65 meters and the shortest is 0.34 meters shorter?

Back

The height of the shortest plant is 2.31 meters (2.65 - 0.34).

Front

How do you find the total amount of liquid in multiple bottles?

Back

Multiply the volume of one bottle by the number of bottles filled.

Front

What is the rule for subtracting decimals?

Back

Align the decimal points and subtract as you would with whole numbers, then place the decimal point in the answer.

Front

What is the significance of moving the decimal in the divisor during division?

Back

When you move the decimal in the divisor, you must move the decimal in the dividend the same number of places to maintain the value of the equation.

Front

How do you calculate the total cost of multiple items?

Back

Add the individual prices of each item together to find the total cost.