Question

6,5×(-30,8) -0,4×(1)=== -18,3×(-5,4) (-10)=== 12,5×(-0,4) 5×(-9,3) (-3)×0,75 ( 5) Решите

Answer 1

6,5×(-30,8) -0,4×(1)=-200,2-0,4=-200,6

-18,3×(-5,4) ? (-10)=нет знака не могу решить.

12,5×(-0,4)=-5

5×(-9,3)=-46,5

(-3)×0,75=-2,25

Answer 2

To solve this expression, we'll perform the arithmetic operations in the following order:

1. Multiplication
2. Addition and Subtraction

Let's start:

6,5 × (-30,8) = -199,40

0,4 × (1) = 0,40

-18,3 × (-5,4) = 98,82

(-10) = -10

12,5 × (-0,4) = -5,00

5 × (-9,3) = -46,50

(-3) × 0,75 = -2,25

(5) = 5

Now we can substitute these values into the expression:

-199,40 - 0,40 - 10 + 98,82 - 5,00 - 46,50 - 2,25 + 5 = -159,08

Therefore, the solution to the expression is -159,08.