Question

помогите плиз 8 и 9 номер

Answer 1

8.
(400-20)*2=400*2-20*2=800-40=760
(80-1)*5=80*5-1*5=400-5=395

(25-9)*4=25*4-9*4=100-36=64
(20-1)*7=20*7-1*7=140-7=133

9.
(60+1)*7=60*7+1*7=420+7=427
(17-13)*5=4*5=20

(67-17)*4=50*4=200
(30-2)*5=30*5-2*5=150-10=140