He is learning the ancient secret art.

He was known as a practitioner of secret arts, and many people feared his power.

To find the dividend, you divide the quotient by the divisor.

I think his behavior is completely lacking in common sense.

His behavior was considered thoughtless.

When you multiply the multiplicand and the multiplier, you get the product.

He injured his shoulder and arm.

Please use the emergency stairs in case of a fire.

She wears a hijab every day.

Please watch yourself when crossing the road.