= | 4-1.63= | = | = |
= | = | = | = |
= | 27×5%= | %= | = |
=1, | 4-1.63=2.37, | =51, | = , |
=27, | = , | = , | = , |
=9, | 27×5%=1.35, | %=0.175, | = . |
分析:根据分数、小数加减乘除的计算方法进行计算;
根据乘法分配律进行简算.点评:口算时,注意运算符号和数据,然后再进一步计算.
编辑:chaxungu时间:2026-04-27 10:43:54分类:小学数学题库
= | 4-1.63= | = | = |
= | = | = | = |
= | 27×5%= | %= | = |
=1, | 4-1.63=2.37, | =51, | = , |
=27, | = , | = , | = , |
=9, | 27×5%=1.35, | %=0.175, | = . |
根据乘法分配律进行简算.