cross-multiplicationn.

Etymology: cross- comb. form 1c(d).Previous versions of the OED give the stress as: ˈcross-multipliˈcation.

Arithmetic.

= duodecimals n. at duodecimal n.

ΘΚΠ

the world > relative properties > number > arithmetic or algebraic operations > [noun] > multiplication > of feet and inches

cross-multiplication1703

duodecimals1714

1703 R. Neve City & Countrey Purchaser 123 Cross-Multiplication is the Multiplying of Feet and Inches by Feet and Inches.

1751 Chambers's Cycl. (ed. 7) Cross-multiplication..so called because the members are multiplied cross-wise.

1836 J. Gray Introd. Arithm. 95 Duodecimals, or Cross multiplication, is a rule by which artificers cast up the contents of their work.

This entry has not yet been fully updated (first published 1893; most recently modified version published online December 2021).

单词	cross-multiplication
释义	cross-multiplicationn. Etymology: cross- comb. form 1c(d).Previous versions of the OED give the stress as: ˈcross-multipliˈcation. Arithmetic. = duodecimals n. at duodecimal n. ΘΚΠ the world > relative properties > number > arithmetic or algebraic operations > [noun] > multiplication > of feet and inches cross-multiplication1703 duodecimals1714 1703 R. Neve City & Countrey Purchaser 123 Cross-Multiplication is the Multiplying of Feet and Inches by Feet and Inches. 1751 Chambers's Cycl. (ed. 7) Cross-multiplication..so called because the members are multiplied cross-wise. 1836 J. Gray Introd. Arithm. 95 Duodecimals, or Cross multiplication, is a rule by which artificers cast up the contents of their work. This entry has not yet been fully updated (first published 1893; most recently modified version published online December 2021). < n.1703
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