口算. = | = | = | = |
| 0.125×8= | = | 0.37+1.3= | = |
= | 2008×99+2008= |
= , | =10 , | = , | = , |
| 0.125×8=1, | = , | 0.37+1.3=1.67, | =4, |
=3, | 2008×99+2008=200800. |
分析:
根据连续减去两个数等于减去这两个数的和简算;2008×99+2008运用乘法分配律简算;其它题目根据运算法则直接求解.点评:本题考查了基本的运算,注意运算法则,灵活运用运算定律求解.
编辑:chaxungu时间:2026-04-27 09:35:17分类:小学数学题库
口算. = | = | = | = |
| 0.125×8= | = | 0.37+1.3= | = |
= | 2008×99+2008= |
= , | =10 , | = , | = , |
| 0.125×8=1, | = , | 0.37+1.3=1.67, | =4, |
=3, | 2008×99+2008=200800. |
根据连续减去两个数等于减去这两个数的和简算;2008×99+2008运用乘法分配律简算;其它题目根据运算法则直接求解.