Adding and Subtracting Integers

-8.76 - (-5.65)

• 3.11

• -3.11

• 14.41

• -14.41

Find  -6.23 - 7.5

• 13.73

• 1.3

• -1.2

• -13.73

When subtracting integers you should

• Subtract and keep the sign of the integer with the lowest absolute value.

• Add and keep the sign.

• Subtract and keep the sign of the first number.

• Add the opposite.

When adding with different signs you should

• Add and keep the sign of the greatest absolute value.

• Subtract the opposite.

• Subtract and take the sign of the higher number.

• Skip it.

Which value of x makes –15 – (–9) = x a true sentence?

• –24

• –6

• 6

• 24

An archaeologist descends 22 feet into a canyon, then climbs up 15 feet. What is his final position?

• –37 ft

• –15 ft

• –7 ft

• 7 ft

Which question is the same as 8 - (-7)?

• -8 - (-7)

• 8 + 7

• 8 - 7

• -8 + 7

........ are operations that undo each other. For example adding, and subtracting that same number.​ (a)  

• inverse operations

• counter example

• natural numbers

• algebraic expression

...... is the name for the set of whole numbers na their opposites.​ (a)  

• integers

• term

• variable

• opposite operations

• operations

• inequality

2 + (3 + 5) = (2 +3) + 5​ (a)   ​

• Associative property of addition

• Associative property of multiplication

• commutative property of addition

• distributive property of addition