math easy

Front

What is the sum of 6 and 6?

Back

12

Front

What is the sum of 80 and 20?

Back

100

Front

What is the sum of 1 and 1?

Back

2

Front

What is the sum of 2 and 2?

Back

4

Front

What is the sum of 0 and 0?

Back

0

Front

What is the definition of addition in mathematics?

Back

Addition is the mathematical operation of combining two or more numbers to get a total.

Front

What is the identity property of addition?

Back

The identity property of addition states that the sum of any number and zero is that number.

Front

What is the commutative property of addition?

Back

The commutative property of addition states that changing the order of the addends does not change the sum.

Front

What is the associative property of addition?

Back

The associative property of addition states that the way in which numbers are grouped when adding does not change the sum.

Front

How do you add two-digit numbers?

Back

Align the numbers by place value, add the digits in each column starting from the right, and carry over if necessary.