2016-04-09 11:04发布
方法反反复复凤飞飞反复
0.49换成4.9*0.1，然后把3个4.9提出来，最后是4.9*（2.7+7.4-0.1）。然后算
就是=（2.7+7.4-0.1）*4.9=10*4.9=49
2.7*4.9+7.4*4.9-0.49
=13.23+36.26-0.49
=85.26
=4.9x(2.7+7.4-0.1)
=4.9x10
=49
=（2.7+7.4-0.1）x4.9
=10x4.9
（2.7+7.4-0.1）X4.9
=2.7x4.9+7.4x4.9-4.9x0.1
=2.7+7.4-0.1）*4.9=49
=4.9x（2.7+7.4-0.1）
解答：2.7*4.9+7.4*4.9-0.49
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付费偷看金额在0.1-10元之间
0.49换成4.9*0.1，然后把3个4.9提出来，最后是4.9*（2.7+7.4-0.1）。然后算
就是=（2.7+7.4-0.1）*4.9=10*4.9=49
2.7*4.9+7.4*4.9-0.49
=13.23+36.26-0.49
=85.26
2.7*4.9+7.4*4.9-0.49
=4.9x(2.7+7.4-0.1)
=4.9x10
=49
2.7*4.9+7.4*4.9-0.49
=（2.7+7.4-0.1）x4.9
=10x4.9
=49
（2.7+7.4-0.1）X4.9
2.7*4.9+7.4*4.9-0.49
=2.7x4.9+7.4x4.9-4.9x0.1
=（2.7+7.4-0.1）x4.9
=10x4.9
=49
=2.7+7.4-0.1）*4.9=49
2.7*4.9+7.4*4.9-0.49
=2.7x4.9+7.4x4.9-4.9x0.1
=4.9x（2.7+7.4-0.1）
=4.9x10
=49
解答：2.7*4.9+7.4*4.9-0.49
=（2.7+7.4-0.1）x4.9
=10x4.9
=49
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