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How3 The answer to which situation is best estimatedby-72A The temperature falls 19"7 from 43'f.B A hot air balloon rises 41 meters from the groundand then rises 2.3 meters more.C A submarine goes 3.8 feet below the surface of theocean and then goes 2 S feet farther down.D The amount of money Sarah has after she buys milkfor $3.85 and bread for $2.45.



Answer :

Situation A:

Estimating 1.9 to the closest integer = 2

Estimating 4.3 to the closest integer = 4

So, the Estimated difference = 4 - 2 = 2

Situation B:

Estimating 4.1 to the closest integer = 4

Estimating 2.3 to the closest integer = 2

So, the estimated rise of the balloon = 4 + 2 = 6

Situation C:

Estimating 3.8 to the closest integer = 4

Estimating 2.5 to the closest integer = 3

So, the estimated depth = (-4) + (-3) = -7

Situation D:

Estimating 3.85 to the closest integer = 4

Estimating 2.45 to the closest integer = 2

So, the estimated cost = -4 + (-2) = -6

So, Situation C is the best estimated by -7

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