Adding Integers Answers

10 verified answers1 views
1
Free Preview

Which expression has the same value as the one below?

Question illustration
A
12 + (negative 9)
Option A
B
Negative 12 + 9
Option B
C
Negative 4 + (negative 9)
Option C
D
4 + (negative 9)
Option D
2
Free Preview

Carlos is using a number line to add another integer to –4. He begins by showing –4 on the number line, as shown below. Carlos adds the other integer on the number line and says that the sum is negative.Which is true of the number Carlos added to –4?

Question illustration
A
The number must be a negative integer.
B
The number must be a positive integer.
C
The number could be 3 or any integer less than 3.
D
The number could be 4 or any integer greater than 4.
3

Which expression has the same sum as the one below?

Question illustration
A
15 + 6
Option A
B
Negative 6 + (negative 15)
Option B
C
15 + (negative 6)
Option C
D
6 + (negative 15)
Option D
4

Rita is adding . She rewrites the expression as . What is Rita’s error?

Question illustration
A
She used the commutative property, which cannot be used with negative numbers.
B
In the new expression, –8 and 1 should both be negative.
C
She used the associative property which should only be used with positive numbers..
D
She switched the negative signs for –8 and 1.
6

A meteorologist used the expression below to describe how the temperature changed. Which statement could describe how the temperature changed?

Question illustration
A
The temperature was –5 degrees, then it increased 4 degrees.
B
The temperature was –5 degrees, then it decreased 4 degrees.
C
The temperature was 5 degrees, then it increased 4 degrees.
D
The temperature was 5 degrees, then it decreased 4 degrees.
7

A scuba diver used the expression below to describe his position in relation to sea level.Which statement could describe the diver’s movements?

Question illustration
A
Starting on a platform 2 feet above sea level, dive down to a location that is 18 feet below sea level, and then rise 8 feet.
B
Starting on a platform 2 feet above sea level, dive down to a location that is 20 feet below sea level, and then rise 8 feet.
C
Starting 2 feet below sea level, dive down 20 more feet, and then rise to a location that is 8 feet below sea level.
D
Starting 2 feet below sea level, dive down 18 more feet, and then rise to a location that is 8 feet below sea level.
8

Which addition does the model below represent?

Question illustration
A
3 + (negative 1)
Option A
B
3 + 4
Option B
C
3 + (negative 4)
Option C
D
3 + 1
Option D
9

Sean says that to add a number to –100 and still have –100 is to add zero. Candice says that she can add two numbers to –100 and still have –100. Who is correct and why?

A
Sean is correct because adding any numbers other than zero will result in a different number.
B
Candice is correct because if the two numbers total 100, then the sum will be –100.
C
They are both correct because adding two numbers that are opposites is equivalent to adding zero.
D
Neither is correct because adding any number to –100 will result in a different number.
10

Which sum does the model below represent?

Question illustration
A
4 + (negative 7) = negative 3
Option A
B
4 + 7 = 11
Option B
C
8 + (negative 3) = 4
Option C
D
11 + (negative 4) = negative 3
Option D

Did you find these answers helpful?

Adding Integers Answers — Pre-Algebra - MA3119 A…