Addition and Subtraction

Front

What is the result of 6000 - 4000 - 1000?

Back

1000

Tags

CCSS.2.NBT.B.8

Front

What is 5000 + 5000?

Back

10000

Tags

CCSS.4.NBT.B.4

Front

What is the result of 47000 - 20000?

Back

27000

Tags

CCSS.4.NBT.B.4

Front

What is the result of 70000 - 40000?

Back

undefined (please calculate the answer)

Tags

CCSS.4.NBT.B.4

Front

What is the sum of the greatest 2-digit number and the smallest 4-digit number?

Back

1099

Tags

CCSS.2.NBT.B.7

Front

What is the greatest 2-digit number?

Back

99

Tags

CCSS.2.OA.C.3

Front

What is the smallest 4-digit number?

Back

1000

Tags

CCSS.4.NBT.A.2

Front

What is the principle of addition in mathematics?

Back

Addition is the process of calculating the total of two or more numbers or amounts.

Tags

CCSS.1.OA.A.1

Front

What is the principle of subtraction in mathematics?

Back

Subtraction is the process of taking one number away from another.

Tags

CCSS.5.NBT.B.7

Front

How do you check your addition?

Back

You can check your addition by performing the inverse operation, which is subtraction.

Tags

CCSS.1.OA.A.1