Question

a) (15-5):(-2)+4×6(-8)+(8+6)


b) (20-3+7)÷8+4×(-2)×3-9(4-1)


c) 2+(75+100)÷(5-30)+100÷2×5


g) 14÷(8-1)+9×8(-4)-(16-5)÷(-4+7)​

Answer 1

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(15-5):(-2)+4×6(-8)+(8+6)

=10:−2+(4×6)(−8)+8+6

=−5+(4×6)(−8)+8+6

=−5+(24)×(−8)+8+6

=−5+−192+8+6

=−197+8+6

=−197+14

=−183

(20-3+7)÷8+4×(-2)×3-9(4-1)

=17+7÷8+(4)(−2×3)−9(4−1)

=24÷8+(4)(−2×3)−9(4−1)

=3+(4)(−2×3)−9(4−1)

=3+(−8×3)−9(4−1)

=3+−24−9(4−1)

=−21−9(4−1)

=−21−(9×3)

=−21−27

=−48

2+(75+100)÷(5-30)+100÷2×5

=2+175÷5−30+100÷2×(5)

=2+175−25+100÷2×(5)

=2+−7+100÷2×(5)

=−5+100÷2×(5)

=−5+(50×5)

=−5+250

=245

14÷(8-1)+9×8(-4)-(16-5)÷(-4+7)

=14÷7+(9)(8)(−4)−(16−5÷−4+7)

=2+(9)(8)(−4)−(16−5÷−4+7)

=2+(72)(−4)−(16−5÷−4+7)

=2+−288−(16−5÷−4+7)

=−286−(16−5÷−4+7)

=−286−11−4+7

=−286−11÷3

=−869/3

Respuestas:

a) -183

b) -48

c) 245

g) -869/3

kiy_.