“四舍五入”使原来的数变大了. (判断对错)
× =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: , .
两个因数的积是4.5,一个因数是0.4,另一个因数是 .