(+7)-(+2)= (+3)-(-3)= (-4)-(+2)= (-5)-(+2)= (-2)-(-8)= -3+9=
-6-2=
3.5-1.8=
-5.5+4.3
4-7=
-8+2=
-4.6-7.2=
-2.3+3.6=
(+6)-(-2)=
(+4)-(-4)=
(-2)-(+1)=
(-3)-(-2)=
(+8)-(+7)=
正負數題!!!!!!!!!!!!!列式
2007-09-23 5:32 am
回答 (2)
2007-09-23 5:40 am
✔ 最佳答案
(+7)-(+2)=7-2
=5
(+3)-(-3)
=3+3
=6
(-4)-(+2)
=-4-2
=-6
(-5)-(+2)
=-5-2
=-7
(-2)-(-8)
=-2+8
=-6
-3+9
=6
-6-2
=-8
3.5-1.8
=1.7
-5.5+4.3
=9.8
4-7
=-3
-8+2
=-6
-4.6-7.2
=-11.8
-2.3+3.6
=1.3
(+6)-(-2)
=6+2
=8
(+4)-(-4)
=4+4
=8
(-2)-(+1)
=-2-1
=-3
(-3)-(-2)
=-3+2
=-1
(+8)-(+7)
=8-7
=1
2007-09-29 12:38 am
(+7)-(+2)
= +7-2
= +5,,
(+3)-(-3)
= +3+3
= +6,,
(-4)-(+2)
= -4-2
=-6,,
(-5)-(+2)
= -5-2
= -7,,
(-2)-(-8)
= -2+8
= +6,,
-3+9
= +6,,
-6-2
= -8,,
3.5-1.8
= 1.7,,
-5.5+4.3
= -1.2,,
4-7
= -3,,
-8+2
= -6,,
-4.6-7.2
= -11.8,,
-2.3+3.6
= +1.3,,
(+6)-(-2)
= +6+2
= +8,,
(+4)-(-4)
= +4+4
= +8,,
(-2)-(+1)
= -2-1
= -3,,
(-3)-(-2)
= -3+2
= -1,,
(+8)-(+7)
= +8-7
= +1,,
= +7-2
= +5,,
(+3)-(-3)
= +3+3
= +6,,
(-4)-(+2)
= -4-2
=-6,,
(-5)-(+2)
= -5-2
= -7,,
(-2)-(-8)
= -2+8
= +6,,
-3+9
= +6,,
-6-2
= -8,,
3.5-1.8
= 1.7,,
-5.5+4.3
= -1.2,,
4-7
= -3,,
-8+2
= -6,,
-4.6-7.2
= -11.8,,
-2.3+3.6
= +1.3,,
(+6)-(-2)
= +6+2
= +8,,
(+4)-(-4)
= +4+4
= +8,,
(-2)-(+1)
= -2-1
= -3,,
(-3)-(-2)
= -3+2
= -1,,
(+8)-(+7)
= +8-7
= +1,,
參考: meme
收錄日期: 2021-04-13 19:09:57
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20070922000051KK04905