1.(-1/3)+(-0.75)+(-3 1/4)+(-2 2/3); P.S.2 2/3=二又二分之三
问题描述:
1.(-1/3)+(-0.75)+(-3 1/4)+(-2 2/3); P.S.2 2/3=二又二分之三
2.(-391)+(-4.93)+(-108)+(-5.07);
3.(-4 1/3)+(-1/6)+3 5/6+(-0.2);
4.2 5/6+(-3/8)+(-1 1/3)+(-1/2);
5.1/2+(-2/3)+4/5+(-1/2)+(-1/3);
6.0.36+(-7.4)+0.5+(-0.6)+0.24;
答
1.(-1/3)+(-0.75)+(-3 1/4)+(-2 2/3)=-8
2.(-391)+(-4.93)+(-108)+(-5.07)=-509;
3.(-4 1/3)+(-1/6)+3 5/6+(-0.2)=-13/15;
4. 2 5/6+(-3/8)+(-1 1/3)+(-1/2)=5/8;
5. 1/2+(-2/3)+4/5+(-1/2)+(-1/3)=-1/5;
6.0.36+(-7.4)+0.5+(-0.6)+0.24=-6.9;