Question

calcule em seu caderno o valor das expressoes
a)1/2 + 1/4 x(-7/2) - 5/4 x(-1/8)
b)(0.5)x(-1.4+2.1)
c)(9/4+7/2)+[3/16x(-10)-7/2]

Answer 1

a)1/2+[-7/8]-[-5/32]
1/2-7/8+5/32
-7/32
b)0.5*0,7=0.35
c)[23/4]+[-30/16-7/2]
23/4-43/8
3/8