Mod 2 Test 7th Grade Eureka

Front

What property means for every number, a, there is a number, -a, so that a + (-a) = 0?

Back

Additive Inverse: For every number a, there exists a number -a such that their sum is zero.

Front

What is the sum of -7 + 7?

Back

0

Front

The amount of shore at a beach changes an average of -3/4 feet each year. What is the amount of shore after 7 years?

Back

-5 1/4 feet

Front

During a football game, Kevin gained 5 yards on the first play and lost 7 yards on the second play. How many yards does Kevin need on the next play to get back to where he started?

Back

2 yards

Front

If the temperature is -3 degrees F at 10 pm and it falls five degrees overnight, what is the resulting temperature?

Back

-8 degrees F

Front

What is the definition of the additive inverse?

Back

The additive inverse of a number a is -a, such that a + (-a) = 0.

Front

What is the result of adding a positive number and its negative counterpart?

Back

The result is always 0.

Front

If a number decreases by 3/4 feet each year, how would you express this change mathematically?

Back

This can be expressed as a negative change: -3/4 feet per year.

Front

What is the result of -5 + 5?

Back

0

Front

If a temperature of -2 degrees F falls by 6 degrees, what is the new temperature?

Back

-8 degrees F