Question 1

Add:

Accepted Answer

The answer of Add: 
...

Question 2

Subtract: 10 - 23

Accepted Answer

Subtracting 23 from 10 gives -13.

Question 3

Subtract: 3 - (-12) - 5 - 5

Accepted Answer

The answer of Subtract: 3 - (-12) - 5 -...

Question 4

Subtract: -18 - 17

Accepted Answer

Subtracting a positive number from a negative number further decreases the value, so -18 - 17 = -35.

Question 5

Multiply:

Accepted Answer

When multiplying numbers written in hexadecimal notation, we can treat them as regular base-10 numbers and multiply them accordingly.

11eb69da * TB8311 = 
(1 * 16^7 + 1 * 16^6 + 14 * 16^5 + 11 * 16^4 + 6 * 16^3 + 9 * 16^2 + 13 * 16^1 + 10 * 16^0) * 
(11 * 16^5 + 9 * 16^4 + 8 * 16^3 + 3 * 16^2 + 1 * 16^1 + 1 * 16^0)

Expanding this out and simplifying, we get:

= -170893A852A20351

So the answer is -170, which is choice D.

Question 6

Add: -11 + (-5) + 14

Accepted Answer

-11 + (-5) + 14 can be simplified by adding -11 and -5 first, which equals -16. Then adding 14, we get a final result of -2. Therefore, option C is correct.

Question 7

Multiply: (31)20

Accepted Answer

31 multiplied by 20 equals 620.

Question 8

Add: 1 + (-6) + 7 + (-17)

Accepted Answer

1 + (-6) + 7 + (-17) = -15

Question 9

Subtract: 10 - (-12)

Accepted Answer

Subtracting a negative number is the same as adding its positive counterpart. Therefore, 10 - (-12) = 10 + 12 = 22.

Question 10

Subtract: -3 - 30

Accepted Answer

When subtracting a negative number, it is the same as adding its absolute value. Therefore, -3 - (-30) becomes -3 + 30 = 27.

Question 11

Subtract: 12 - (-14)

Accepted Answer

Subtracting a negative number is the same as adding its positive counterpart. Therefore, 12 - (-14) = 12 + 14 = 26.

Question 12

Add: -15 + 17

Accepted Answer

When you add -15 and 17, you get 2 because 17 - 15 equals 2.

Question 13

Add:

Accepted Answer

The answer of Add: 
...

Question 14

Subtract: -3 - (-21)

Accepted Answer

When subtracting a negative number, we can think of it as adding the opposite (positive) number. So:

-3 - (-21) = -3 + 21 = 18

Therefore, the correct answer is D) 18.

Question 15

Add:

Accepted Answer

The answer of Add: 
...

Question 16

Subtract: -12 - (-22)

Accepted Answer

To subtract a negative number, we can simply add the opposite. In this case, we have -12 - (-22), which is the same as -12 + 22. Adding these two numbers gives us:

-12 + 22 = 10

Therefore, the correct answer is D) 10.

Question 17

Add:

Accepted Answer

The answer of Add: 
...

Question 18

Subtract: 2 - 21

Accepted Answer

When subtracting a larger number from a smaller number, the result is a negative number. Therefore, 2 - 21 = -19. The correct answer is B.

Question 19

Subtract: -14 - (-16) - 9 - 5

Accepted Answer

-14 - (-16) - 9 - 5 = -14 + 16 - 9 - 5 = 2 - 9 - 5 = -12

Question 20

Subtract: 15 - (-17) - 4

Accepted Answer

The symbols and numbers in the question seem to be a distraction or possibly incorrectly formatted. However, focusing on the basic arithmetic operation given, which is 15 - (-17) - 4, we get: 15 + 17 - 4 = 32 - 4 = 28.

Quiz 1: Real Numbers and Variable Expressions

Add:

Subtract: 10 - 23

Subtract: 3 - (-12) - 5 - 5

Subtract: -18 - 17

Multiply:

Add: -11 + (-5) + 14

Multiply: (31) 20

Add: 1 + (-6) + 7 + (-17)

Subtract: 10 - (-12)

Subtract: -3 - 30

Subtract: 12 - (-14)

Add: -15 + 17

Add:

Subtract: -3 - (-21)

Add:

Subtract: -12 - (-22)

Add:

Subtract: 2 - 21

Subtract: -14 - (-16) - 9 - 5

Subtract: 15 - (-17) - 4