They must know three things: They must have good handwriting, because the data is handwritten; they must be able to read; and they must be able to do multiplication, division, addition and subtraction in their head.
Мөн тэд гурван зүйлийг чадах ёстой: мэдээллийг гараар дамжуулдаг байсан тул гоё бичдэг байх, уншиж чаддаг байх ба үржүүлж, хувааж, нэмж, хасч чаддаг байх ёстой байж.