Adding and subtracting tens

Front

10 - 10 = ?

Back

0

Tags

CCSS.2.NBT.B.5

Front

80 - 20 = ?

Back

60

Tags

CCSS.1.NBT.C.5

Front

60 + 10 = ?

Back

70

Tags

CCSS.2.NBT.B.5

Front

30 + 30 = ?

Back

60

Tags

CCSS.2.NBT.B.5

Front

40 + 20 = ?

Back

60

Tags

CCSS.2.NBT.B.5

Front

What is addition?

Back

Addition is combining two or more numbers to get a total.

Tags

CCSS.1.OA.A.1

Front

What is subtraction?

Back

Subtraction is taking one number away from another.

Tags

CCSS.2.NBT.B.7

Front

What do we call the result of addition?

Back

The result of addition is called the sum.

Tags

CCSS.6.EE.A.1

Front

What do we call the result of subtraction?

Back

The result of subtraction is called the difference.

Tags

CCSS.5.NBT.B.7

Front

If you add 10 to 20, what do you get?

Back

30

Tags

CCSS.2.NBT.B.5