Last number is : 998                      

The first number is : 100

               Number with three digits that share for 2 is :

                              ( 998 - 100 ) : 2 + 1 =  450 ( numbers )

                                           Đ/s : 450 numbers.

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Wish you good study  

Last number is: 998 

The first number: 100 

Số có ba chữ số mà chia hết cho 2 là :

    ( 998 - 100 ) : 2 + 1 = 450 ( numbers )

                                Đ/s : 450 numbers 

Easy you 

The number of 5A field was developed are:

       180 : 100 x 45% = 81 ( trees ) 

Number of 5A plants to be planted is :

        180 - 81 = 99 ( trees )

                      Đ/S: 99 trees 

Wish you good study 

Trapezoidal area is:

     \(\dfrac{\left(3+5\right)\times2}{2}=8\left(m^2\right)\)

                          Answer : 8 m² 

This article is too easy 

The number of 5A field was developed are:

          180 : 100 x 45 = 81 ( trees )

                                   Đ/S : 81 trees 

Easy you