The estimated answer to a multiplication problem is 800,000. which of the following expressions could result in this answer? explain how you know.
8,146 x 12
81,467 x 121
8,146 x 121
81,477 x 1,217

8,146 x 121

Step-by-step explanation:

This is a problem in which you need to measure your understading of "orders of magnitude."

If the estimated answer is that means that we are looking at a multiplication in the "order of"

You need to look at the "orders of magnitude" of the things you're multiplying. In the first case, we have that would be "of the order of" times . So the whole multiplication would "of the order of" or near

The correct answer, 8,146 x 121, is because it's "of the order of" times and the gives us the we need.

true statements:

a) x + y = y + x   ⇒ commutative property of addition

b) (x * y) * z = x * (y * z) ⇒ associative property of multiplication

d) (x + y) + z = x + (y + z) ⇒ associative property of addition

false statements:

c) x - y = y - x   should be: x - y = - y + x

e) (x - y) - z = x - (y - z) should be: (x - y) - z = x - (y + z)

step-by-step explanation:

answer: 193

explanation:

200-7 = 193