|a|=1,5 =. a=+-1,5

a) th1: a=1,5 =>a)  M=1,5-0,5=1

b) N=2.1,5- 3.(-0,5)=4,5

c) P= 1,5:3 - 3: (-0,5) =6,5

th2: a=-1,5 =>a) M=-1,5-0,5=-2

b) N=2.(-1,5)- 3.(-0,5)=3

c) P=(-1,5):3 - 3: (-0,5) = 5,5

1.->What are these?

2.->These are chairs

3.->We are students

4.->These are erasers

5.->Are those your pen?

1.There are four people in Nam's family

2.They are in living room now

1.How old are their children?

2.What is that?

3.What is next to your house?

4.Which class is Rose in?