Question

3点84加负3分之1的小括号加正4分之3的小括号加负12分之5的小括号.等于多少

Answer 1

3.84+(-1/3)+(3/4)+(-5/12) =3.84+(-1/3)+(3/4)-(5/12) =3.84-(4/12)+(9/12)-(5/12) =3.84