Question

doy coronisha

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Answer 1

Respuesta:

A - 37

B - 54

C 58

D 37

E - 57

F 59

Answer 2

a) -2×(-7+18)-(9-28÷7)×7 =

+(18-7) = 11

2×(-7+18)-(9-28÷7)×7 =

-(28÷7) = 4

-2×11-(9-4)×7 =

-(2×11) = -22

-2×11-(9-4)×7=

5

-22-5×7=

-(5×7= -35

-22-35

-(22+35)= -57

d) 17+100÷(-20)×4+(1-8÷2)÷2+13=

-(100÷20×4) = -20

17+100÷(-20)×4+(1-8÷2)÷2+13=

-(8÷2)= -16

17-20-(1-16)×2+13=

-(1-16)= -15

17-20-15×2+13=

-(15×2)= -30

-17-20-30= -67

-67+13= -54

c) (-4+9×(-4))÷(-3+11)-7×(5-14)=

-(9×4)= -36

(-4+9×(-4))÷(-3+11)-7×(5-14)=

+(11-3)=8

(-4+9×(-4))÷(-3+11)-7×(5-14)=

-(14-5)= -9

(-4-36)÷8-7×(-9)=

-(4×36)= -40

(-4-36)÷8-7×(-9)=

7×9=63

-40÷8= -5

+(63-5)=58

d) (-6×7+5×8)×(-18)÷(7-10)+7(-8+13)+14=

-(6×7= -42

(-6×7+5×8)×(-18)÷(7-10)+7(-8+13)+14=

40

(-6×7+5×8)×(-18)÷(7-10)+7(-8+13)+14=

-(10-7)= -3

(-6×7+5×8)×(-18)÷(7-10)+7(-8+13)+14=

+(13-8)=5

(-42+40)×(-18)÷(-3)+7×5+14=

-(42-40)= -2

(-42+40)×(-18)÷(-3)+7×5+14=

35

-2×(-18)÷(-3)+35+40=

-(2×18)=36

-(36÷3)= -12

-12+35+40=37