523﹣23×7
4.97+6.38+5.03﹣4.38
60×()
×3.2+5.6×0.5+1.2×50%
()÷
+=
÷8=
4--=
+++=
43÷10%=
÷=
××0=
1.25+8.75=
1﹣0.625=
列式: