Best Answer

It is a question with infinitely many answers.

For example,

21 * 0.1

210 * 0.01

7 * 0.3

Q: What is blank times blank equals 2.1?

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Related questions

3*7 = 21

3 times blank equals 18,000 = 54000

Blank = zero.

7 times blank = 2 times blank

It is: 9 times 7 = 63

blank = 9

22.1133444 approx

The answer is three. 6 x 3 = 18

10

11

100 times 130 equals 13,000

nothing