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学习了乘法,想都不用想就知道作业肯定是计算题啦!可千万不要说我懒,要是口算题,对我来说是小菜一碟。如果是列竖式计算那我就头大了,因为我这个人太马虎,不是进位漏了,就是数位没对齐……每次面对错题我只能仰天长叹。翻看作业本,结果和我猜的一样,都是计算题,为了不出错,我认认真真地计算着。当算到40×40=1600,39×41=1599时,这组算式引起了我
Learning to multiply, do not have to think about homework is sure to calculate the problem it! Do not say I am lazy, if the mouth count, for me it is a piece of cake. If it is a column vertical calculation then I head big, because I am too sloppy man, not a carry leak, is the number of misaligned ... Every time I face the wrong title I can only sigh. Looked at homework, the results and I guess the same, are calculated problems, in order not to make mistakes, I seriously calculated. When calculating 40 × 40 = 1600, 39 × 41 = 1599, this set of equations caused me