• 曰(speak; bright cloud)
• 乚(lightning bolt; hook stroke (downward))

A flash of lightning bursts bright through the clouds—that is electricity itself!

• 子(child (pictographic))

The character 子 depicts a newborn child with a large head and arms outstretched.

• 言(word; speech)
• 十(ten)

Calculation is using words to count numbers one by one.

• ⺮(bamboo (radical))
• 具(tool; implement)

Ancient calculation used bamboo sticks as a tool to count numbers.

• 曰(speak; bright cloud)
• 乚(lightning bolt; hook stroke (downward))

A flash of lightning bursts bright through the clouds—that is electricity itself!

• 子(child (pictographic))

The character 子 depicts a newborn child with a large head and arms outstretched.

• 言(word; speech)
• 十(ten)

Calculation is using words to count numbers one by one.

• ⺮(bamboo (radical))
• 具(tool; implement)

Ancient calculation used bamboo sticks as a tool to count numbers.