H24

Tinh gia tri cua tong sau:8+88+888+8888+88888

DH
4 tháng 5 2016 lúc 21:59

8+88+888+8888+88888= 98760

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H24
4 tháng 5 2016 lúc 22:02

=8x(1+11+111+1111+11111)                        

=8x 12345            

= 98760                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        

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ZZ
4 tháng 5 2016 lúc 22:21

98760

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