(3 ×(- 2)) × 5= (-9 × 4) × (-2,5)= (13 ×(-5)) × 20=

Question

(3 ×(- 2)) × 5=
(-9 × 4) × (-2,5)=
(13 ×(-5)) × 20=

Answer 1

(3 ×(- 2)) × 5=-6×5=30
(-9 × 4) × (-2,5)=-36×(-2,5)=90
(13 ×(-5)) × 20=-65×20=-1300

Comments

там в первом - 30

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Знаю

Answer 2

(3 ×(- 2)) × 5= -6 ×5=-30
(-9 × 4) × (-2,5)=(-36)×(-2,5)=90
(13 ×(-5)) × 20=(-65)×20=-1300