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velikii [3]
4 years ago
8

Explain why estimation is an important skill to know when adding and subtracting decimals.

Mathematics
2 answers:
salantis [7]4 years ago
7 0
I think personally it is way easier for me to do it that way. Let's say we have 6.687-4.798, then think how long it takes to solve this problem versus just solving 6.700-4.800. Does that make sense?
Alla [95]4 years ago
3 0
Estimation is a important skill to know when adding and subtracting decimals because if you estimate you have an idea on what your answer should be close to.

For example 4.68-2.38 could be 5-2 which is 3. 4.68-2.38 equals 2.3. 2.3 is close to 3.
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Find the GCF of 72 and 84 using prime factorizations
Verdich [7]

Answer:

  GCF = 12

Step-by-step explanation:

72 = 2³·3²

84 = 2²·3·7

Common prime factors are 2 and 3. The lowest power of 2 is 2; the lowest power of 3 is 1. The greatest common factor is 2²·3 = 12.

7 0
3 years ago
Plzzz help! what expersion is equivalent to it?
sladkih [1.3K]

Answer:

64x^{12}

Step-by-step explanation:

We have to use the law of indices for finding the equivalent expression.

(8x^{5})^{2} = 64x^{10}  We square 8, which is 64 and multiply the two powers.

(x^{4})^{\frac{1}{2}} = x^{2}  We multiply the 2 powers giving us, \frac{4}{2}, which simplifies to 2.

64x^{10} × x^{2} = 64x^{12}  This is the answer as we multiply the two indices together.

I hope this helps!! ^-^

8 0
3 years ago
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victus00 [196]
Brenda ran 33 miles as it is 14 +19 which equals 33

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3 years ago
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Answer:

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3 years ago
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