Question:
1).9+8+(-6)= 11
2).(-13)+(-8)+5= -16
3).-63-(35+12)= -16
4).2×(-3)×(-5)= 30
5).-72 ÷9+8=0
Solution:
1. 9+8+(-6)
9+8=17
17+(-6)=11
2.(-13)+(-8)+5
-13+(-8)=-23
-21+5= -16
3. -63-(35+12)
35+12=47
-63+(47)= -16
4. 2×(-3)×(-5)
2(-3)=-6
-6(-5)=30
5.-72÷9+8
-72÷9=-8
-8+8=0
You must noted:
-Use MDAS (Multiplication, Division, Addition, and Subtraction) before answering to identify what number should you compute first.
-The number have highest sign (positive or negative) must be copy to your answer
ex:
7+-18=-11
-18 is the highest number so you must copy it's sign
-Also always remember the rule in multiplication and division.
Positive×Postive=Positive
Negative×Negative=Positive
Negative×Postive=Negative
Positive÷Postive=Positive
Negative÷Negative=Positive
Negative÷Postive=Negative
Hope I Help
