Question

buna,ma puteti ajuta si pe mine la aceate operatii?​

Answer 1

Răspuns:

(8x9-4:2)-(91-9x9)=60

100-(27+7x6-48:8):7=91

(4x8+3x9+21):10:(40-9x4)=2

Answer 2

Răspuns:

a) ( 8 x 9 - 4 : 2 ) - ( 91 - 9 x 9 ) =

( 73 - 2 ) - ( 91 - 89 ) =

71 - 2 = 69

b) 100 - ( 27 + 7 x 6 - 48 : 8 ) : 7 =

100 - ( 27 + 42 - 6 ) : 7 =

100 - ( 69 - 6 ) : 7 =

100 - 63 : 7 =

100 - 9 = 91

c) ( 4 x 8 + 3 x 9 + 21 ) : 10 : ( 40 - 9 x 4 ) =

( 32 + 27 + 21 ) : 10 : ( 40 - 36 ) =

( 59 + 21 ) : 10 : 4 =

80 : 10 : 4 =

8 : 4 = 2