Question

mim ajudem é pra me entregar amanhã

Answer 1

47a)30-(-6-1)=30-(-7)=30+7=37
b)15+(-3+7)=15+(4)=19
c)-6-(-3+2)=-6-(-1)=-6+1=7
d)18-(-5-2-3)=18-(-10)=18+10=28
e)4+(3-5)+(-2-6)=4+(-2)+(-8)=4-2-8=4-10=-6
f)20-(-6+8)-(-1+3)=20-(+2)-(+2)=20-2-2=20-4=16
g)35+(-3)-(-4+7+2)=35-3-(-4+9)=32-(+5)=32-5=27
h)8+(3-10)-(3+5-20)=8+(-7)-(8-20)=8-7-(-12)=1+12=13
48a)1,65+(-3,5)-(-2)=1,65-3,5+2=-1,85+2=0,15
b)-1,5-(+0,4)-(-0,32)=-1,5-0,4+0,32=-1,9+0,32=1,58
c)-0,6-(+2)-(0,3-1,8)=-0,6-2-(-1,5)=-2,6+1,5=-1,1
d)-1,75-(0,6+1,2+1,05)=1,75-(1,8+1,05)=-1,75-(2,85)=-1,75-2,85=4,6