Question

5,624 ÷ 72 using estimation

Answer 1

Answer: 80

Step-by-step explanation:

First change the equation to the nearest tenth,
5620 divided by 70

Now, break up the 70 into ( 10 * 7 )

So first do 5620 divided by 10

5620 divided by 10 = 562

Now if we round to the nearest tenth again we get 560

Now we can divide 560 by 7

Which comes out to 80

Answer 2

Answer: 80

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Step-by-step explanation:

5624 is close to 5600

72 is close to 70

Therefore, 5624 ÷ 72 is close to 5600 ÷ 70 = 80

Think of it like saying 56 ÷ 7 = 8 but then we add the zeros onto each to get what is shown above.

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Use your calculator to find that

5624 ÷ 72 = 78.111 approximately

which isn't too far from the estimate value of 80. Our estimate is an over-estimate.