2 years ago

What is the best estimate of 687 × 391? 280,000 210,000 240,000 180,000

Mathematics

2 answers:

ra1l [238]2 years ago

7 0

Answer:

Step-by-step explanation:

Estimating a sum by rounding to get the best estimate is the goal of this lesson. Notice that we try to estimate. We don't need to have an exact answer!

Notice that for numbers with two digits, there can only be one estimate because you can only round to the tens place.

Estimate the following sums: 36 + 21, 74 + 15, and 85 + 24

36 + 21 = 40 + 20 = 60

74 + 15 = 70 + 20 = 90

Colt1911 [192]2 years ago

3 0

Answer:

I used a calculator but the answer I got was different so I'ma say A

Step-by-step explanation:

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