Estimate using mental math: 87.4 x 26.67. Show how you would estimate mentally, then show your estimated answer.

2,330.950

Step-by-step explanation:

Like I said before, I usually use my fingers.

But, I usually would do a sheet of paper and pencil in my head.

I then would try to sole it.

So I multiply 87.4 x 26.67.

I think it would be around 2,330.950.

I hope this helped.

Louise’s answer is not correct. She is missing the term 30x3. When squaring a binomial, it is best to write the product of the binomial times itself. Then you can use the distributive property to multiply each term in the first binomial by each term in the second binomial. Louise also could have used the formula for a perfect square trinomial, which is found by squaring a binomial.