Question

1) 23 – 39 2) – 1,8 – 2,6 3) 4,5 – (- 0,9) 4) – 1,3 – 0,8 5) – 2,5 – 6,7 6) 0,12 – 1,375 7) 1,25 – 3,8

Answer 1

Ответ:

1)-16

2)-4,4

3)5,4

4)-2,1

5)-9,2

6)-1,255

7)-2,55

Answer 2

Ответ:

1. -16

2.-4.4

3. 5.4

4. -2.1

5.-9.2

6.-1.255

7.-2.55

Answer 3

To solve these mathematical expressions, we'll perform the calculations step by step:

1. 23 - 39 = -16
2. -1.8 - 2.6 = -4.4
3. 4.5 - (-0.9) = 4.5 + 0.9 = 5.4
4. -1.3 - 0.8 = -2.1
5. -2.5 - 6.7 = -9.2
6. 0.12 - 1.375 = -1.255
7. 1.25 - 3.8 = -2.55

Here are the results of each expression:

1. 23 - 39 = -16
2. -1.8 - 2.6 = -4.4
3. 4.5 - (-0.9) = 5.4
4. -1.3 - 0.8 = -2.1
5. -2.5 - 6.7 = -9.2
6. 0.12 - 1.375 = -1.255
7. 1.25 - 3.8 = -2.55