16.87-17.01+2.84=?

2007-05-26 7:49 pm

16.87-17.01+2.84=?

回答 (8)

2007-05-26 7:54 pm

✔ 最佳答案

16.87
+ 2.84
-----------
19.71
-17.01
------------
2.70

=2.7

可以先加後減

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2007-05-26 11:28 pm

16.87-17.01+2.84=?8.7

2007-05-26 15:28:45 補充：
係2.7唔係8.7- -''sorry

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2007-05-26 8:30 pm

16.87-17.01+2.84

=-0.14+2.84

=2.7

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2007-05-26 8:03 pm

先16.87-17.01+2.84

=(16-17+2)+(0.87-0.10+0.84)

後=(-1+2)+(0.77+0.84)

=1+1.61

=2.61

參考: me i hope i can help you

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2007-05-26 7:58 pm

2.7
先計16.87+2.84
之後計16.87-17.01+2.84

參考: 自己

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2007-05-26 7:57 pm

16.87-17.01+2.84
=16.87+2.84-17.01
=19.71-17.01
=2.70
=2.7

參考: me

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2007-05-26 7:56 pm

first put 16.87-17.01= -0.14
second put -0.14+2.84
so the answer is 2.7

參考: ok..?

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2007-05-26 7:54 pm

16.87-17.01+2.84
=-0.14+2.84
=2.7

參考: 計數機

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