d 3.5 -4.2+6.5-3.5+5 e 25.2+12-4.8+24-3.4 f 13+15+7-15 g -8+4+18-2+12+6 h 4.3-7.4+4-2.25+6.5+3.4-2.75 i 2.5+4.8-3.6+0.2+2.5 r (-3+9)-(4-11)-(-5-6) s -3+12-(13-
Mathématiques
yannis93
Question
d 3.5 -4.2+6.5-3.5+5
e 25.2+12-4.8+24-3.4
f 13+15+7-15
g -8+4+18-2+12+6
h 4.3-7.4+4-2.25+6.5+3.4-2.75
i 2.5+4.8-3.6+0.2+2.5
r (-3+9)-(4-11)-(-5-6)
s -3+12-(13-8)-(3+8)
t -3-crocher 4-(3-9)crocher
e 25.2+12-4.8+24-3.4
f 13+15+7-15
g -8+4+18-2+12+6
h 4.3-7.4+4-2.25+6.5+3.4-2.75
i 2.5+4.8-3.6+0.2+2.5
r (-3+9)-(4-11)-(-5-6)
s -3+12-(13-8)-(3+8)
t -3-crocher 4-(3-9)crocher
1 Réponse
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1. Réponse Anonyme
3.5 - 4.2 + 6.5 - 3.5 + 5
= 7.3
25.2 + 12 - 4.8 + 24 - 3.4
= 53
13 + 15 + 7 - 15
= 20
- 8 + 4 + 18 - 2 + 12 + 6
= 30
4.3 - 7.4 + 4 - 2.25 + 6.5 + 3.4 - 2.75
= 5.8
2.5 + 4.8 - 3.6 + 0.2 + 2.5
= 6.4
(- 3 + 9) - (4 - 11) - (- 5 - 6)
= 6 - (- 7) - (- 11)
= 6 + 7 + 11
= 24
- 3 + 12 - (13 - 8) - (3 + 8)
= - 3 + 12 - 5 - 11
= - 7
- 3 - [4 - (3 - 9)]
= - 3 - [4 - (- 6)]
= - 3 - (4 + 6)
= - 3 - 10
= - 13