what is: +51 + (−50) + (+49) + (−48)?
回答 (26)
2016-06-25 3:48 pm
+51 + (-50) + (+49) + (-48)
= 51 - 50 + 49 - 48
= (51 - 50) + (49 - 48)
= 1 + 1
= 2
= 51 - 50 + 49 - 48
= (51 - 50) + (49 - 48)
= 1 + 1
= 2
2016-06-25 4:23 pm
Drop the course and go back to kindergarten.
2016-07-01 1:05 am
2
2016-06-25 9:40 pm
51 - 50 + 49 - 48 =
1 + 1 = 2
1 + 1 = 2
2016-07-06 1:13 am
(+51)+(-50)+(+49)+(-48)=
(+51*1)+(-50*1)+(+49*1)+(-48*1)=
((+50*1)+(+1*1))+(-50*1)+((+40*1)+(+9*1))+((-40*1)+(-8*1))=
((+5*(10^1))+(+1*(10^0)))+((-5*(10^1)))+((+4*(10^1))+(+9*(10^0)))+((-4*(10^1))+(-8*(10^0)))=
2
(+51*1)+(-50*1)+(+49*1)+(-48*1)=
((+50*1)+(+1*1))+(-50*1)+((+40*1)+(+9*1))+((-40*1)+(-8*1))=
((+5*(10^1))+(+1*(10^0)))+((-5*(10^1)))+((+4*(10^1))+(+9*(10^0)))+((-4*(10^1))+(-8*(10^0)))=
2
2016-07-05 9:58 pm
2
2016-07-05 2:37 pm
2 is the answer
2016-07-05 6:17 am
(51-50)+(49-48)=2
2016-07-03 12:13 pm
51 - 50 = 1
49 - 48 = 1
1 + 1 = 2
49 - 48 = 1
1 + 1 = 2
2016-07-03 11:04 am
51-50+49-48
=2
=2
2016-07-03 3:28 am
51 - 50 + 49 - 48 =
100 - 98 =
2.
100 - 98 =
2.
2016-07-02 6:00 pm
2
2016-07-02 5:27 pm
its answer is 2.
2016-06-30 5:22 pm
2
2016-06-30 8:25 am
+ 51 + ( - 50 ) + ( + 49 ) + ( - 48 ) = 51 + * - 50 + 49 + * - 48 , simplification by multiplication of + * - , opening the brackets ( ) , since + * - OR - * + = - and - * - = + , we get
51 - 50 + 49 - 48 = 1 + 1 = 2
51 - 50 + 49 - 48 = 1 + 1 = 2
2016-06-29 9:24 pm
51-50+49-48 = 2
2016-06-29 10:31 am
It's basically 51-50+49-48 so 51-50=1, 1+49=50, 50-48=2.
2016-06-27 1:17 am
That's it
51-50=1
1+49=50
50-48=2
51-50=1
1+49=50
50-48=2
2016-06-26 12:36 pm
2 I think. Try this
51-50=1
1+49=50
50-48=2
51-50=1
1+49=50
50-48=2
2016-06-26 12:31 am
+51 + (−50) + (+49) + (−48).
Combine like terms:
+51 + (+49) = +100 or 100
-50 + (-48) = -98
Then add them together: 100 + (-98) = 100 - 9 = 2.
Combine like terms:
+51 + (+49) = +100 or 100
-50 + (-48) = -98
Then add them together: 100 + (-98) = 100 - 9 = 2.
2016-06-25 7:25 pm
2. Separate into two different sums (or differences) and you'll see clearly.
2016-06-25 6:43 pm
2
2016-06-25 5:32 pm
2
2016-06-25 4:57 pm
1 + 1 = 2
2016-06-25 3:52 pm
The answer is 2.
2016-06-25 3:48 pm
the answer is 2,
收錄日期: 2021-04-18 15:11:50
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20160625074604AAiHc4f