5th Math STAAR + ÷ Decimals

Front

What is the result of dividing a decimal by a whole number?

Back

To divide a decimal by a whole number, move the decimal point in the dividend (the number being divided) to the right as many places as needed to make it a whole number, then divide as usual.

Front

How do you divide two decimals?

Back

To divide two decimals, first convert them to whole numbers by moving the decimal points to the right. Then, divide as you would with whole numbers and place the decimal point in the quotient.

Front

What is the process for multiplying two decimals?

Back

To multiply two decimals, multiply them 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

What is the significance of the decimal point in division?

Back

The decimal point indicates the value of the number. In division, it helps determine the placement of the decimal in the quotient.

Front

How do you convert a fraction to a decimal?

Back

To convert a fraction to a decimal, divide the numerator (top number) by the denominator (bottom number).

Front

What is the formula for calculating the cost per person when sharing expenses?

Back

Cost per person = Total cost ÷ Number of people.

Front

What is the relationship between multiplication and division?

Back

Multiplication and division are inverse operations; dividing a number by another is the same as multiplying by its reciprocal.

Front

How do you round a decimal to two decimal places?

Back

To round a decimal to two decimal places, look at the third decimal place. If it is 5 or greater, round up the second decimal place by one. If it is less than 5, keep the second decimal place the same.

Front

What is the importance of estimating in division?

Back

Estimating helps to quickly determine if the answer is reasonable and can guide the actual calculation.

Front

What is a common mistake when dividing decimals?

Back

A common mistake is misplacing the decimal point in the quotient, which can lead to incorrect answers.