TEKS.4.5(A)

Front

What is a strip diagram?

Back

A visual representation used to show the relationship between numbers in a problem, often used in addition and subtraction.

Front

What does the equation 1,000 - 600 = M represent?

Back

It shows that if you start with 1,000 and take away 600, you are left with M.

Front

How do you calculate the total number of books Sarah has after receiving and giving away books?

Back

You add the books she received to her original amount and then subtract the books she gave away: 35 + 15 - 5.

Front

What does the equation 40 + 25 + 20 = Q represent?

Back

It shows that if you add 40, 25, and 20 together, you find the total amount represented by Q.

Front

How can you find the number of pages Sabra read on the second and third days?

Back

You can set up an equation where the total pages read minus the pages read on the first day equals twice the number of pages read on the second and third days.

Front

What does 720 represent in the context of Ezekiel and Jonas's blocks?

Back

720 represents the total number of blocks that Jonas has.

Front

What is the first step in solving a word problem involving addition and subtraction?

Back

Identify the key numbers and operations involved in the problem.

Front

What is the purpose of using equations in word problems?

Back

Equations help to represent the relationships between quantities and make it easier to solve for unknowns.

Front

How do you determine the unknown in an equation?

Back

You isolate the variable by performing inverse operations on both sides of the equation.

Front

What is the relationship between addition and subtraction?

Back

Subtraction is the inverse operation of addition; if you know the total and one part, you can find the other part by subtracting.