Question

Выполните действия: а) -3,1+(-2,74)= б) -2,3+1,86= в)-3,58+5,4= г)-3,5-1,23= д)4,6-(-2,93)=

Answer 1

Ответ:

а) - 3,1+(-2,74)=-3,1-2,74=-5,84

б)-2,3+1,86=-0,44

в)-3,58+5,4=1,82

г)-3,5-1,23=-4,73

д)4,6-(-2,93)=4,6+2,93=7,53

Answer 2

Пошаговое объяснение:

а)-5,84

б)-4,16

в)1,82

г)-4,73

д)7,53

Answer 3

а) -3,1 + (-2,74) =

To add two negative numbers, we simply add their absolute values and keep the negative sign. So,

-3,1 + (-2,74) = -5,84.

б) -2,3 + 1,86 =

To add a negative number and a positive number, we subtract the absolute value of the negative number from the positive number. So,

-2,3 + 1,86 = -0,44.

в) -3,58 + 5,4 =

To add a negative number and a positive number, we subtract the absolute value of the negative number from the positive number. So,

-3,58 + 5,4 = 1,82.

г) -3,5 - 1,23 =

To subtract a negative number, we can rewrite the expression as addition. So,

-3,5 - 1,23 = -3,5 + (-1,23) = -4,73.

д) 4,6 - (-2,93) =

To subtract a negative number, we can rewrite the expression as addition. So,

4,6 - (-2,93) = 4,6 + 2,93 = 7,53.

Therefore, the results are: а) -3,1 + (-2,74) = -5,84 б) -2,3 + 1,86 = -0,44 в) -3,58 + 5,4 = 1,82 г) -3,5 - 1,23 = -4,73 д) 4,6 - (-2,93) = 7,53.