Question

1) (+45) (-12 )= 2) ( -5)( +70 )=

3) (+90)( +100 )(-4) = 4) ( +6 )( +3)( +50)(-1) =

5) (+30)(-4)(+5)( 0)(+1) = 6) ( +70)(-2)(+21) = -

7) (+20)(+3)( +8) = 8) (+200 )( +7 -6) =

9) (+4)(-2)( 0)(-4)(+85) = 10) 7(-55 + 95) =

Answer 1

Respuesta:

1) (+45) (-12 )= -540

2) ( -5)( +70 )= -350

3) (+90)( +100 )(-4) = -36000

4) ( +6 )( +3)( +50)(-1) = -900

5) (+30)(-4)(+5)( 0)(+1) = 0

6) ( +70)(-2)(+21) = -2940

7) (+20)(+3)( +8) = 480

8) (+200 )( +7 -6) = 200

9) (+4)(-2)( 0)(-4)(+85) = 0

10) 7(-55 + 95) = 280