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There are a few ways to determine if a multiplication fact is correct:

- Repeated addition: since multiplication is simply repeated addition at its base, you can reaffirm a multiplication fact by repeatedly adding the number you're multiplying. With the basic multiplication facts (i.e. times tables), this is possibly the best option.
- Division: Since it's simply the reverse of multiplication, then you can just reverse the process to confirm it.
- Using multiple methods: There are multiple ways to do multiplication than just the usual long multiplication done in school, such as lattice multiplication, and Ayurvedic multiplication (just to name the two I know). You can use these to confirm a multiplication.

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Q: How do you know that a multiplication fact is correct?

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You can use a calculator to verify your multiplication numbers. Google is also a valuable resource for any math related questions.

nothing as far as i know

If a fact family has only 2 multiplication nd division sentences, what do you know about the product and divident?

Cross multiplication IS the correct term!

Let's say the question was 4x5. The answer is 20. If a division question 20 divided by 5, you know its 4 from the multiplication question.

multiplication fact means the truth

To cross-check that a multiplication is correct as for example if 7*8 = 56 then the reverse process of division must be correct as 56/7 = 8 or 56/8 = 7

No. A multiplication fact contains two factors being multiplied, like 0x8 or 7x6.

"Another" implies that you have at least one. It would help to know what that is (or they are).

product

The solution.

There is only one number. The simplest multiplication fact is 3122111 x 0 = 0There is only one number. The simplest multiplication fact is 3122111 x 0 = 0There is only one number. The simplest multiplication fact is 3122111 x 0 = 0There is only one number. The simplest multiplication fact is 3122111 x 0 = 0

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