2.7C Represent Subtraction w/Base Ten: set 2

Front

What is subtraction?

Back

Subtraction is taking away a number from another number. It shows how many are left after some are taken away.

Front

What does the minus sign (-) mean?

Back

The minus sign means to subtract or take away.

Front

If you have 10 apples and you give away 3, how many do you have left?

Back

You have 7 apples left. (10 - 3 = 7)

Front

What is the result of 5 - 2?

Back

The result is 3.

Front

How can we represent subtraction using base ten blocks?

Back

We can use base ten blocks to show the total amount and then remove blocks to represent the subtraction.

Front

What is a base ten block?

Back

A base ten block is a tool used to represent numbers using units (ones), rods (tens), and flats (hundreds).

Front

If you have 12 and you subtract 4, what is the answer?

Back

The answer is 8. (12 - 4 = 8)

Front

What does it mean to regroup in subtraction?

Back

Regrouping in subtraction means to borrow from a higher place value when you cannot subtract a smaller number from a larger number.

Front

What is the difference between 15 and 7?

Back

The difference is 8. (15 - 7 = 8)

Front

How do you write a subtraction sentence?

Back

A subtraction sentence is written with two numbers and a minus sign, like this: 9 - 3 = 6.