Integer Operations

When adding integers, if the signs are DIFFERENT you...

• Add the numbers and attach the sign of the number with higher absolute value

• Subtract the numbers and attach the sign of the number with higher absolute value

• Multiply the numbers and the sign is negative

• Take the absolute value of the numbers and add

When multiplying or dividing a NEGATIVE and NEGATIVE number your result will be...

• POSITIVE
• NEGATIVE
• DEPENDS ON WHICH NUMBER IS LARGER.

When multiplying or dividing a NEGATIVE and POSITIVE number your result will be...

• Positive
• Negative
• Depends on which is bigger.

-8+(-2)

• -6
• -10
• 10
• 6

Reorder the following from least to greatest

• 0

• 5

• 10

• -5

• -10

3(-7)

• -21
• 21
• -4
• 4

• 10

• -10

• -9

• 9

-5-(-7)

• -12
• 12
• 2
• -2

The high temperature Monday was 4 degrees. The low temperature was -7 degrees. What is the difference between the high and low temperatures?

• 3 degrees
• 12 degrees
• 11 degrees
• 10 degrees

Find the value:
15 - 100

• -85
• 100
• -100
• 95