应用数学

• 广(wide roof; broad eave)RADICAL
• 𤇾(inner form; response pattern)ASSOCIATIVE

Under a wide roof, every call finds someone to answer.

• 用(use; utilize)ASSOCIATIVE

A bucket with a handle is what people pick up and use every day.

• 娄(many times; piled up)PHONO-SEMANTIC
• 攵(tap; hand motion)RADICAL

Counting numbers is using your hand to tap repeatedly many times in order to calculate.

• ⺍(two hands (indicating learning))ASSOCIATIVE
• 冖(roof; house)ASSOCIATIVE
• 子(child)RADICAL

A child sitting under a roof with two hands diligently studying represents learning.