Question

3,8-4,2=? -8+2=? Ответ с решением!

Answer 1

3,8-4,2=4,2-3,8=-0,4

-8+2=-8-2 =-6

Answer 2

Доброе утро! Щас решим
1)3,8-4,2=-(4,2-3,8)=-0,4=-2/5
2)-8+2-(8-2)=-6

Answer 3

Let's solve the two equations step-by-step:

1. 3.8 - 4.2: To subtract these two numbers, align the decimal points:

   3.8

• 4.2

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Since we have to subtract 4.2 from 3.8, we need to borrow from the tens place:

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 3.8

• 4.2

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 0 (borrow 1 from the tens place, making 3 as 2)

Now, we can subtract the numbers:

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 3.8

• 4.2

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 0 (3 - 4 = -1, but since we borrowed 1, it becomes 0)

• 6 (borrow 1 from the tens place, making 8 as 7)

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-0.4

So, the result of 3.8 - 4.2 is -0.4.

2. -8 + 2: To add these two numbers, simply add them together:

-8 + 2 = -6

So, the result of -8 + 2 is -6.

Therefore, the answers with the solutions are:

1. 3.8 - 4.2 = -0.4
2. -8 + 2 = -6