Can I write "A is multiplied to B"?

The general sentence is "B is multiplied by A", which has the same meaning above.

I could not find any example in the internet, Thanks.

  • 1
    A is multiplied by B.
    – Lambie
    Aug 24, 2020 at 18:44
  • 1
    A is multiplied to B is an English mistake.
    – Lambie
    Aug 24, 2020 at 18:47

2 Answers 2


"A multiplied to B" is incorrect. When discussing the multiplication of two numbers, we say the first number is multiplied by the second number.

Here are the common arithmetic operations:

A + B - B is added to A
A - B - B is subtracted from A
A x B - A is multiplied by B
A ÷ B - A is divided by B
A / B - A is divided by B (often seen e.g. in computer code, spreadsheets, etc)

  • 1
    It could not be more obvious.
    – Lambie
    Aug 24, 2020 at 18:57
  • +1, a side note,: adding the active voice versions would be a great addition in my opinion.
    – Cardinal
    Aug 24, 2020 at 23:35
  • @Cardinal - be my guest. Aug 25, 2020 at 14:24

I have no idea why there are different prepositions used for addition and multiplication because they are both commutative operations, but that is what is idiomatic.

Add three to five

Multiply three by five.

Fortunately, you really only need to learn the prepositions for the non-commutative operations of subtraction ("from") and division ("by" or "into").

It is idiomatic (and mathematically sensible) to say

Add three and five.

Multiply three and five.

  • Could you please directly address my question? is "A is multiplied to B" correct? if not why, thanks.
    – Michael
    Aug 24, 2020 at 18:37
  • "A is multiplied to B" does not sound right to me. There may not be a logical reason, but we use the preposition "by" for multiplication, or the other idiomatic "and" that the answer mentions. Aug 24, 2020 at 18:45
  • @Michael - see answer below. Aug 24, 2020 at 18:56
  • 1
    @Michael "Multiply to" is not idiomatic. "Multiply by" is idiomatic. Aug 24, 2020 at 19:35
  • 1
    "Multiplied to" is idiomatic in some contexts but with a different meaning. Cambridge's online dictionary gives thie example: "18 birds multiplied to 100 in just three years." The "to" precedes the final total, not the figure by which the 18 were multiplied. This is not strictly an arithmetical use of the term "multiply", though, and "A is multiplied to B" sounds very odd - but if someone did say "A is multiplied to B", I might interpret them as meaning as "A is multiplied [by C] to reach a final total of B".
    – rjpond
    Aug 24, 2020 at 20:02

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