Rational Numbers

By Sarah Kolikas Sarah Spencer
Core-1

Numbers:.5,-6,10, and -4/5

Comparing:.5>-6 .5<10 .5<-4/5 10>-6 10>-4/5 -6<-4/5

Ordering From Least To Greatest: -6, -4/5, .5, 10

Absolute Value:|.5|+|-6| 6.5 |10|-|-6|=4 |-4/5|x|10|=12 1/25

|10|\ |.5|=20

Explanation- The absolute value is how far it is from 0.

Operation With Integers

Addition:

1)-2+4=2

2)4+5=9

Subtraction:

1) 7- -7= 14

2)12 - -5=7

Multiplication

1)-6x5=30

2)-10x13=130

Division

1) -14 \ 3=4.2

2) -9 \ -2=4.5

Story Problem-

1) Bella had $75.00 in her wallet she bought some shoes that cost $50.00 and then she saw a cute outfit that cost $25.00.Soon after she cashed her paycheck which was $120.00. How much money does she have in her wallet?

Answer:120.00

2) Kim has borrowed money.She is buying her sister a present for her birthday. The present cost $20.00.And then she saw a ring that cost $90.50.How much does she owe?

Answer:$110.50

3) The submarine started at -6ft below sea level. Jacob dived the following: -4, 3, -2. how far below sea level is the submarine?

Answer:-9