Representing and solving problems involving mixed operations on numbers greater than 1000

Front

What is a mixed operation in mathematics?

Back

A mixed operation involves using more than one mathematical operation (addition, subtraction, multiplication, division) in a single problem.

Front

How do you find the total amount of money returned by a shopkeeper?

Back

To find the total amount returned, subtract the total cost of items from the amount given to the shopkeeper.

Front

If Vamsi bought a coat for 2265 rupees and a vase for 1456 rupees, how much did he spend in total?

Back

2265 + 1456 = 3721 rupees.

Front

What is the first step to solve the problem: Vamsi gives 5000 rupees to the shopkeeper, how much does he get back?

Back

First, calculate the total cost of the items he bought.

Front

How do you calculate the number of men in a stadium if you know the total number of people and the number of women?

Back

Subtract the number of women from the total number of people: Total - Women = Men.

Front

What is the total number of people who went to the movies on Friday and Saturday?

Back

Add the number of people who went on Friday to the number who went on Saturday.

Front

What operation do you use to find out how many cabins are needed for students?

Back

You use division to find out how many cabins are needed based on the number of students and the capacity of each cabin.

Front

If 472 students are going on a field trip and 120 are returning home, how many will stay overnight?

Back

472 - 120 = 352 students will stay overnight.

Front

What is the inverse operation of subtraction?

Back

The inverse operation of subtraction is addition.

Front

How do you determine how many cabins are needed if each cabin sleeps 8 people?

Back

Divide the number of students staying overnight by the capacity of each cabin: Students ÷ 8.