- = | × = | ×44= | ÷22= | 4.5×10%= |
÷ = | ÷ = | -1.25= | 1.5+ = | X- X= |
解: - = , | × = , | ×44=20, | ÷22= , | 4.5×10%=0.45, |
÷ =2, | ÷ = , | -1.25=0.5, | 1.5+ =3, | X- X= X. |
分析:根据分数和小数加减乘除的计算方法进行计算即可.
点评:口算时,注意运算符号和数据,然后再进一步计算即可.
编辑:chaxungu时间:2026-04-27 08:15:35分类:小学数学题库
- = | × = | ×44= | ÷22= | 4.5×10%= |
÷ = | ÷ = | -1.25= | 1.5+ = | X- X= |
解: - = , | × = , | ×44=20, | ÷22= , | 4.5×10%=0.45, |
÷ =2, | ÷ = , | -1.25=0.5, | 1.5+ =3, | X- X= X. |