DMR Day 28

Front

What is the result of the equation 7 + -13?

Back

-6

Front

What is the result of the equation 15 + -25?

Back

-10

Front

What does -4 represent in terms of 2-color counters?

Back

It represents a net loss of 4.

Front

Write the expression that represents 4 + -5 using different notation.

Back

4 + (-5) or 4 + -5

Front

What is the concept of adding a negative number?

Back

Adding a negative number is the same as subtracting the absolute value of that number.

Front

What is the definition of a 2-color counter?

Back

A 2-color counter is a visual representation used to model positive and negative values.

Front

How do you represent a loss of 4 using 2-color counters?

Back

You would use 4 red counters to represent the loss.

Front

What is the equation modeled by the expression 4 + -5?

Back

The equation is 4 - 5.

Front

What is the principle behind combining like terms in an expression?

Back

Combining like terms simplifies the expression by adding or subtracting coefficients of the same variable.

Front

What does the term 'net value' mean in mathematics?

Back

Net value refers to the total amount remaining after all gains and losses are accounted for.