Question

ATIVIDADE :

1- Calcule o valor das expressões numéricas:

a) 45 – { 4 . [( 9 . 12 – 14 . 7 ) : ( 15 – 5 . 2 )]}=


b) 20 : 4 + 3 . 2 – 15 : 3=


c) [ 25 – ( 18 : 3 )]. { 5 – [ 18 – ( 4 . 5 – 4 )]}=


d) { 38 + [( 143 : 11 + 7 ) – 5 . 2]}: 6 =


e) 2 . [ ( 5 – 2 ) . ( 3 + 2 . 7 )] – 2 =


f) ( 8 + 6 . 8 : 4) + [ 3 + 15 : 5 + 5] =


g) 25 : 5 + ( 8 + 3 . 10 : 2) + ( 4 . 3 – 14 : 7)=


h) {[ 12 – 5 x 2 + ( 24 : 3 – 7) ] + 5} =


i) ( 32 – 8 : 4) + ( 45 : 9 + 8) – 6 =​

Answer 1

letra b tá bom estudo

letra b eu chutei a respota