Envision 2nd grade Topic 5

Front

What is subtraction?

Back

Subtraction is the process of taking one number away from another. It shows how many are left after some are taken away.

Front

What does the term 'difference' mean in math?

Back

The difference is the result of subtracting one number from another.

Front

If you have 78 eggs and use 50, how do you find out how many are left?

Back

You subtract 50 from 78: 78 - 50 = 28 eggs left.

Front

What is an open number line?

Back

An open number line is a straight line where you can mark numbers to help visualize addition or subtraction.

Front

How do you solve 64 - 29?

Back

You subtract 29 from 64: 64 - 29 = 35.

Front

What is the result of 78 - 52?

Back

The result is 26.

Front

What is 43 - 39?

Back

The result is 4.

Front

How do you find out how many passengers are left if 47 got off a bus with 77 passengers?

Back

You subtract 47 from 77: 77 - 47 = 30 passengers left.

Front

What is the first step in solving a subtraction problem?

Back

Identify the two numbers you need to subtract.

Front

What does it mean to 'find the difference'?

Back

It means to calculate how much one number is less than another.