Sun Zi's Mathematical Classic

One person receives sixteen. Calculation: This completes the final division from the previous page: $16 \div 1 = 16$.

To the right, in the sequence of fours: one unit|original: 條; tiáo results in forty; this number multiplied by itself|original: 自相乘; zì xiāng chéng yields one thousand six hundred. Calculation: $(4 \times 10)^2 = 40^2 = 1,600$.
Divided among four people, one person receives four hundred. Calculation: $1,600 \div 4 = 400$.

Three times three is|original: 如; rú nine; The term "ru" (literally "as" or "like") is used in Chinese mathematical tables to signify the result of a multiplication, similar to the modern "equals" sign. this number multiplied by itself yields eighty-one. Calculation: $(3 \times 3)^2 = 9^2 = 81$.
Divided among three people, one receives twenty-seven. Calculation: $81 \div 3 = 27$.

Two times three is six; this number multiplied by itself yields thirty-six. Calculation: $(2 \times 3)^2 = 6^2 = 36$.
Divided among two people, one receives eighteen. Calculation: $36 \div 2 = 18$.

One times three is three; this number multiplied by itself yields nine. Calculation: $(1 \times 3)^2 = 3^2 = 9$.
One person receives nine. Calculation: $9 \div 1 = 9$.

Vocabulary: multiplied by itself (squaring); divide it; unit/line; one person receives.