Front

What is 45 + 10?

Back

55

Tags

CCSS.2.NBT.B.5

Front

What is 91 + 8?

Back

99

Tags

CCSS.2.NBT.B.5

Front

What is 51 + 11 + 31?

Back

93

Tags

CCSS.2.NBT.B.6

Front

What is 41 - 40?

Back

1

Tags

CCSS.2.NBT.B.5

Front

What is 25 - 5?

Back

20

Tags

CCSS.1.OA.C.6

Front

What is the sum of two numbers?

Back

The result of adding two numbers together.

Tags

CCSS.1.OA.A.1

Front

What does it mean to subtract?

Back

To take one number away from another.

Tags

CCSS.2.OA.A.1

Front

What is a 2-digit number?

Back

A number that has two digits, like 23 or 45.

Tags

CCSS.1.NBT.A.1

Front

What is the difference between addition and subtraction?

Back

Addition combines numbers, while subtraction takes one number away from another.

Tags

CCSS.1.OA.A.1

Front

If you add 10 to a number, what happens to that number?

Back

It increases by 10.

Tags

CCSS.3.OA.D.9