Question

1) (+78): (-78); 2) 28:(-2);3) +95: (+1);4) (+4) 245) (9) · (-11);600 (+88);7) -56: (-7);8) 4. (-24);9) 0:(-91)10) (33):11;11) - 18. (+5);12) +66 (-1).​

Answer 1

Ответ:

Пошаговое объяснение:

1) (+78): (-78)=-1

2) 28:(-2)=-14

3) +95: (+1)=95

5) (9) · (-11)=-99

7) -56: (-7)=8

8) 4. (-24)=-96

9) 0:(-91)=0

10) (33):11;=3

11) - 18. (+5)=-90

Answer 2

It looks like you've provided a list of mathematical expressions in a specific format, where you're asking to perform various operations. Let's go through each expression and perform the operations as indicated:

1. $+78 - (-78) = 78 + 78 = 156$

2. $28 \div (-2) = -14$ (division of a positive number by a negative number results in a negative quotient)

3. $+95 \div (+1) = 95$ (division of a positive number by a positive number results in a positive quotient)

4. $+4 \times 245 = 980$ (multiplication of a positive number and a positive number results in a positive product)

5. $9 \times (-11) = -99$ (multiplication of a positive number by a negative number results in a negative product)

6. $600 + (+88) = 600 + 88 = 688$

7. $-56 \div (-7) = 8$ (division of a negative number by a negative number results in a positive quotient)

8. $4 \times (-24) = -96$ (multiplication of a positive number by a negative number results in a negative product)

9. $0 \div (-91) = 0$ (division of zero by a negative number results in zero)

10. $33 \div 11 = 3$ (division of a positive number by a positive number results in a positive quotient)

11. $-18 + (+5) = -13$ (addition of a negative number and a positive number)

12. $+66 - (-1) = 67$ (subtraction of a negative number from a positive number)

If you have any specific questions or if there's a particular step you'd like more explanation on, feel free to ask!