Strip Diagrams and Equations (+ - x)

Front

What is a strip diagram?

Back

A visual representation used to show the relationship between numbers in a problem, often used to help solve addition, subtraction, multiplication, or division problems.

Front

What does the equation 8 x s = 72 represent?

Back

It represents the total number of slices of pizza (72) being divided equally among 8 pizzas, where 's' is the number of slices per pizza.

Front

How do you find the total number of items using multiplication?

Back

Multiply the number of groups by the number of items in each group. For example, if there are 5 groups of 4 items, the total is 5 x 4 = 20.

Front

What does the equation 1,375 x 5 = X solve for?

Back

It solves for the total number of bottle caps collected by 5 students, each collecting 1,375 caps.

Front

What does the number 720 represent in the context of Zeke and Devin's blocks?

Back

It represents the total number of blocks that Devin has.

Front

What is the purpose of using equations in word problems?

Back

Equations help to translate a word problem into a mathematical format that can be solved to find an unknown value.

Front

What does the term 'more than' indicate in a mathematical context?

Back

It indicates addition. For example, '280 more than Zeke has' means you add 280 to the number of blocks Zeke has.

Front

What is the difference between multiplication and addition?

Back

Multiplication is repeated addition. For example, 4 x 3 means adding 4 three times (4 + 4 + 4).

Front

How can you check if your answer to a multiplication problem is correct?

Back

You can check by dividing the total by one of the factors. If the result equals the other factor, your answer is correct.

Front

What does the equation 72 / 8 = s solve for?

Back

It solves for the number of slices in each pizza when 72 slices are divided among 8 pizzas.