4.OA.1, 4.OA.2, and 4.OA.3 Review

Front

What is the relationship between the length of a movie and a television show if the movie is 3 times as long as the show?

Back

If a television show is 60 minutes long, then the movie is 3 times 60, which equals 180 minutes.

Front

How do you calculate the total revenue from selling items at a fixed price?

Back

Multiply the number of items sold by the price per item. For example, if 213 popsicles are sold at $1 each, the revenue is 213 x 1 = $213.

Front

What equation represents the number of doctors if there are 4 data analysts and 8 times as many doctors?

Back

The equation is 8 × 4 = 32, meaning there are 32 doctors.

Front

How do you estimate the total amount paid if each person pays a fixed amount?

Back

Multiply the number of people by the amount each person pays. For example, 42 fourth graders each paying $3 results in an estimated total of 42 x 3 = $126.

Front

If Hong is 7 years old and his dad is 6 times as old as him, how old is his dad?

Back

Hong's dad is 6 x 7 = 42 years old.

Front

What is the formula to find the total cost when multiple items are sold at a uniform price?

Back

Total Cost = Number of Items Sold x Price per Item.

Front

How do you determine the age of a family member based on the ages of others?

Back

Use the relationships given in the problem. For example, if a dad is 6 times the age of his son and the son is 7, then the dad is 42.

Front

What is the importance of estimating in word problems?

Back

Estimating helps to quickly assess the reasonableness of an answer and can simplify calculations.

Front

How can you express a relationship between two quantities using multiplication?

Back

You can express it as an equation, such as 'Number of doctors = 8 x Number of data analysts'.

Front

What is the significance of understanding ratios in problem-solving?

Back

Ratios help to compare quantities and understand relationships, such as age differences or proportions.