Question

) 12,34-567,89–123,4-56,789 1) 12,34:567,89–123,4:5678,9E) (1,87+1,955): 0,85-(3-1,75–2,5)-1,62*) (5,72:0,009 +12,34:0,25):0,4-14,84:0,1​

Answer 1

Ответ:

1)-735,739

2)0

3)-2916,558

Answer 2

Let's break down the given expression step by step:

1. 12,34:567,89–123,4:5678,9 To evaluate this expression, we divide 12.34 by 567.89 and subtract the result obtained by dividing 123.4 by 5678.9.

12.34 divided by 567.89 = 0.02172 (rounded to five decimal places) 123.4 divided by 5678.9 = 0.02172 (rounded to five decimal places)

Therefore, the result of this expression is 0.

2. (1,87+1,955):0,85-(3-1,75–2,5)-1,62 Let's evaluate this expression step by step:

1.87 + 1.955 = 3.825 (rounded to three decimal places) 3.825 divided by 0.85 = 4.500 (rounded to three decimal places) 3 - 1.75 = 1.25 1.25 - 2.5 = -1.25 -1.25 - 1.62 = -2.87 (rounded to two decimal places)

Therefore, the result of this expression is -2.87.

3. (5,72:0,009 +12,34:0,25):0,4-14,84:0,1 Let's evaluate this expression step by step:

5.72 divided by 0.009 = 635.56 (rounded to two decimal places) 12.34 divided by 0.25 = 49.36 (rounded to two decimal places) 635.56 + 49.36 = 684.92 (rounded to two decimal places) 684.92 divided by 0.4 = 1712.30 (rounded to two decimal places) 14.84 divided by 0.1 = 148.40

Therefore, the result of this expression is 1712.30 - 148.40 = 1563.90 (rounded to two decimal places).

So, the final result of the given expression is 1563.90.