文档介绍:64÷2 =
64÷4 =
50÷5 =
60÷8 =
96÷4 =
90÷6 =
400+80 =
400-80 =
40×80 =
400÷80 =
48÷16 =
96÷24 =
160×5=
4×250=
×=
14-=
÷=
×500=
+=
10-=
4÷20=
×200=
-=
÷15=
3/4 - 1/2=
1/6 + 1/2 -1/6 =
-(+)=
7/8 + 3/8 =
×=
4×=
+=
×99=
420÷35=
25×12=
135÷=
3/4 + 1/4 =
2 + 4/9 =
3 - 2/3 =
3/4 - 1/2=
1/6 + 1/2 -1/6 =
-(+)=
7/8 + 3/8 =
3/10 +1/5 =
4/5 - 7/10 =
2 - 1/6 -1/3 =
÷17=
+19=
÷=
×=
×=
1÷5=
6÷12=
4÷20=
×200=
-=
÷15=
3/10 +1/5 =
4/5 - 7/10 =
2 - 1/6 -1/3 =
÷17=
+19=
÷=
×=
×=
1÷5=
6÷12=
-=
17×40=
100-63=
+=
×=
14-=
÷=
×500=
+=
10-=
×=
1÷5=
6÷12=
-=
17×40=
100-63=
+=
×=
×=
4×=
+=
×99=
420÷35=
25×12=
135÷=
3/4 + 1/4 =
2 + 4/9 =
3 - 2/3 =
3/4 - 1/2=
1/6 + 1/2 -1/6 =
-(+)=
7/8 + 3/8 =
3/10 +1/5 =
4/5 - 7/10 =
2 - 1/6 -1/3 =
÷17=
+19=
÷=
×=
135÷=
3/4 + 1/4 =
2 + 4/9 =
3 - 2/3 =
3/4 - 1/2=
1/6 + 1/2 -1/6 =
-(+)=
14-=
÷=
×500=
+=
10-=
4÷20=
×200=
-=
÷15=
×=