一个平行四边形的底是6.5米,高是4米,与它等底等高的三角形面积是 平方米.
× =× =+ =1.5× =× =1.
× =3600 × =3600 × =3600 × =3600 × =3600.
× = ÷=+ =1.
小刚在计算除法时,把除数42写成24,结果得360.正确的商应该是 .
把×=改写成两道除法算式: , .