Gore a tlhatlosiwe go ya kwa mophatong o o latelang wa sekolo, Jane o kwala ditlhatlhobo di le tharo tse di tshwanetseng go lekanya maduo a a seng ka fa tlase ga 42. Mo tlhatlhobong ya ntlha, Jane o ne a bona maduo a le 15, mo tlhatlhobong ya bobedi a bona maduo a le 18. Ke maduo a a kana kang a a tlhokegang gore a a bone mo tlhatlhobong ya boraro gore a fete?

There are 96 fourth-graders at Small Tree  School. 43 of them are girls. On Friday, 5 fourth-grade girls and 4 fourth-grade boys were absent. How many fourth grade boys were at Small Tree  School on Friday?
Fa re kopanya maduo a a boneng mo ditlhatlhobong tsa ntlha tse pedi, Jane o boneng maduo a le 15 + 18 = <<15+18=33>>33.
Gore a fete, Jane o tshwanetse go bona maduo a le 42 - 33 = <<42-33=9>>9.
#### 9 

Of the 96 fourth graders, 43 are girls, so 96 students - 43 girls = <<96-43=53>>53 boys.
On Friday there were 53 boys - 4 absent = <<53-4=49>>49 boys.
#### 49