Multiplication and Division of Decimals Word Problems

Front

What is multiplication of decimals?

Back

Multiplication of decimals involves multiplying two decimal numbers together to find their product. For example, 0.5 x 0.2 = 0.1.

Front

How do you divide decimals?

Back

To divide decimals, you can convert the divisor to a whole number by moving the decimal point and then move the decimal point in the dividend the same number of places. For example, 4.5 ÷ 0.5 becomes 45 ÷ 5 = 9.

Front

What is a word problem in mathematics?

Back

A word problem is a mathematical problem that is presented in the form of a story or real-life scenario, requiring interpretation and problem-solving.

Front

How do you find the cost of multiple items when given the price of one?

Back

To find the total cost, multiply the price of one item by the number of items. For example, if one yard of fabric costs $7.85 and you buy 0.8 yards, the total cost is $7.85 x 0.8 = $6.28.

Front

What is average speed?

Back

Average speed is calculated by dividing the total distance traveled by the total time taken. For example, if Mr. Williams ran 13.2 miles in 1.6 hours, his average speed is 13.2 ÷ 1.6 = 8.25 mph.

Front

How do you calculate the total distance over multiple months?

Back

To calculate the total distance over multiple months, multiply the distance run in one month by the number of months. For example, if Samuel ran 56.8 miles in one month, in 3.5 months he would run 56.8 x 3.5 = 198.8 miles.

Front

What is the formula to find the price of each item sold?

Back

To find the price of each item, divide the total earnings by the number of items sold. For example, if Ava earned $59.70 from selling 6 bracelets, the price per bracelet is $59.70 ÷ 6 = $9.95.

Front

How do you calculate a percentage increase in time?

Back

To calculate a percentage increase, find the difference between the new value and the original value, divide by the original value, and multiply by 100. For example, if Sally talks for 38.4 minutes and then 5.5 times that, her new time is 38.4 x 5.5 = 211.2 minutes.

Front

What is the importance of estimating in multiplication and division?

Back

Estimating helps to quickly assess whether an answer is reasonable before calculating the exact answer. It can also simplify complex calculations.

Front

What is a decimal?

Back

A decimal is a fraction expressed in a special form, where the denominator is a power of ten. For example, 0.75 is a decimal that represents 75/100.