Mid-Assessment 2B - Session 2

Front

What is the sum of 7 and 7?

Back

14

Front

What is the sum of 10 and 9?

Back

19

Front

Estimate the sum of 43 and 19.

Back

Approximately 60

Front

What addition fact can help solve 16 - 7?

Back

7 + 9 = 16

Front

Estimate the sum of 55 and 38.

Back

Approximately 90

Front

What is the definition of addition?

Back

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

Front

What is the commutative property of addition?

Back

The commutative property 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 states that the way in which numbers are grouped in addition does not change the sum.

Front

How do you round numbers for estimation?

Back

To round a number, look at the digit to the right of the place value you are rounding to; if it's 5 or more, round up.

Front

What is a number line and how is it used in addition?

Back

A number line is a visual representation of numbers in a straight line, used to illustrate addition by moving to the right.