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用简便方法计算10.1乘以7.9等于

用简便方法计算10.1乘以7.9等于 解答 10.1×7.9 =(10+0.1)×7.9 =79+0.79 =79.79

用简便运算怎么计算10.1x7.9 10.1*7.9 =10*7.9+0.1*7.9 =79+0.79 =79.79

1乘到10等于多少.有简便方法吗 1*2*3*....*8*9*10 =2*5*3*4*6*7*8*9*10 =10*10*3*4*6*7*8*9 =100*3*3*3*4*6*7*8 =2700*2*2*2*3*2*2*2*7 =2700*64*21

7.9乘以10.1 =7.9x(10+0.1) =7.9x10+7.9x0.1 =79+0.79 =79.79 行家正解,不明白可以追问!祝您学习进步 满意请点击下面的【选为满意回答】按钮,O(∩_∩)O谢谢

你学负数了吗?

简便计算 7/11×8/9+10/11×7/9 =8/11×7/9+10/11×7/9 =(8/11+10/11)×7/9 =18/11×7/9 =14/11

计算下面各题,注意使用简便方法。 9/10×5/12+4/7+3/7 =3/8+(4/7+3/7) =3/8+1 =1又3/8 5/8×5/9+3/8×5/9 =(5/8+3/8)×5/9 =1×5/9 =5/9 13/10÷7+13/10×6/7 =13/10×1/7+13/10×6/7 =13/10×(1/7+6/7) =13/10×1 =13/10 24×(5/6-3/8) =24×5/6-24...

LZ大大嚎! 我们来看看这条算式,从1到3,从3到5,从5到7及后面的数都是按照+2+2的顺序依次叠加,直到末项29,且第一个数与最后一个数加起来等于30,第二个数与倒数第二个数加起来也应等于30,以此类推。那么中间到底有多少项呢?我们可以用求项...

7/19一5/8十12/19一3/8 =(7/19十12/19)一(5/8+3/8) =1-1 =0 17/9一1/2一1/2 =17/9-(1/2+1/2) =17/9-1 =8/9 9/10一(9/20一1/2) =18/20-9/20+10/20 =19/20 (3/11十8/11)一(12/25+13/25) =1-1 =0

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