mechanical pencil

I solve the math problems with a mechanical pencil.

私は芯繰り出し式鉛筆を使い数学の問題を解きます

I solve the math problems with a mechanical pencil after school.

私は放課後に芯繰り出し式鉛筆を使い数学の問題を解きます

I solve the math problems with a mechanical pencil with my friend after school.

私は放課後に友人と芯繰り出し式鉛筆を使い数学の問題を解きます

I solve the math problems with a mechanical pencil with my friend at the library after school.

私は放課後に友人と図書館で芯繰り出し式鉛筆を使い数学の問題を解きます

I solve the math problems with a new mechanical pencil with my friend at the library after school.

私は放課後に友人と図書館で新しい芯繰り出し式鉛筆を使い数学の問題を解きます