4°) resolva as expressões numéricas :
a)48-{28-4.[3. (40:5-3):(17-3.4)]}+19=
b)(6.8-19+75:15):(4.4:8)=
c)83-{30+[27-(17-9+6)+47]}=
d){3.50+[(4.4+64:16).3].2}:3=
e)168-{68+[32+(15-6+3)]-30}=
me ajudem pfv
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48-{28-4.[3. (40:5-3):(17-3.4)]}+19=
48-{28-4.[3. (40:2):(17-12)]}+19=
48-{28-4.[3. 20:5]}+19=
48-{28-4.[60:5]}+19=
48-{28-4.12}+19=
48-{28-48}+19=
48-20+19=
28+19=
10
48-{28-4.[3. (40:2):(17-12)]}+19=
48-{28-4.[3. 20:5]}+19=
48-{28-4.[60:5]}+19=
48-{28-4.12}+19=
48-{28-48}+19=
48-20+19=
28+19=
10
takatujulia00:
Essa é só a A
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