Question

3.(-12+7)-(12)
49:7-3.(4)+9
2+75:(-5)-4.(-1)
81:(-9)-3.(-3)+(-9)
me ajudem

Answer 1

3.(-12+7)-(12)

-36+21-12

-15-12

-27

49:7-3.(4)+9

7-12+9

-5+9

4

2+75:(-5)-4.(-1)

2-15+4

-13+4

-9

81:(-9)-3.(-3)+(-9)

-9+9-9

-9+0

-9

Answer 2

3. (12+7)-(12)

3.19-12

57-12

45

49:7-3. (4)+9

7-3.4+9

7-12+9

-5+9

-4

2+75÷(-5)-4. (-1)

2+75:-5-4.-1

2-15-4.-1

2-15+4

-17+4

-13

81:(-9)-3. (-3)+(-9)

81:-9-3.-3-9

-9-3.-3-9

-9+9-9

0-9

-9