Math lab Decimal Word Problems

Front

What is a decimal?

Back

A decimal is a fraction expressed in a special form. It uses a decimal point to separate the whole number part from the fractional part.

Front

How do you multiply decimals?

Back

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

Front

What does it mean to divide by a decimal?

Back

Dividing by a decimal involves converting the divisor (the number you are dividing by) into a whole number by moving the decimal point to the right, and then moving the decimal point in the dividend (the number being divided) the same number of places.

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

What is the value of 3.85 x 8?

Back

The value is 30.80.

Front

What is the first step in dividing 19.5 by 0.31?

Back

The first step is to move the decimal point in 0.31 two places to the right.

Front

If Larry has $3.96 left after buying bananas for $64.90, how much did he have initially?

Back

Larry had $68.86 initially.

Front

Calculate 7.8 ÷ 0.03.

Back

The answer is 260.

Front

Calculate 5.75 ÷ 0.25.

Back

The answer is 23.

Front

What is the importance of decimal places in calculations?

Back

Decimal places determine the precision of a number. They are crucial in ensuring accuracy in calculations involving money, measurements, and scientific data.