Amigos échenme una mano
1) -4+9 - 7 - 8+6 -2 + 5+2 – 3+1 =
2) +12 - 15 + 9 + 8 - 6-9- 4+3 - 2 - 1 =
3) -6 +2 -1-8-6+ 7+ 4 + 2 –5–1 =
4) +8 – 3 – 4+7–6–2 +5 – 3+9–6 =
5) -7 + 4 + 2 – 6-8 +9–3 – 5 + 8 =
6) +10 – 15 – 5 + 20 – 8 - 2 + 4- 6+2=
7) -9 + 3-2 +5-7-2-1 + 10 + 4 =
8) +2 - 1.5 + 4.3 +5 - 2.3 - 8 + 1.5
9)-0.4 + 4.6 + 2.3 +2.3 - 1.5
Respuestas
-4+9 - 7 - 8+6 -2 + 5+2 – 3+1 =
=5−7−8+6−2+5+2−3+1
=−2−8+6−2+5+2−3+1
=−10+6−2+5+2−3+1
=−4−2+5+2−3+1
=−6+5+2−3+1
=−1+2−3+1
=1−3+1
=−2+1
=−1
+12 - 15 + 9 + 8 - 6-9- 4+3 - 2 - 1 =
=−3+9+8−6−9−4+3−2−1
=6+8−6−9−4+3−2−1
=14−6−9−4+3−2−1
=8−9−4+3−2−1
=−1−4+3−2−1
=−5+3−2−1
=−2−2−1
=−4−1
=−5
-6 +2 -1-8-6+ 7+ 4 + 2 –5–1 =
=−4−1−8−6+7+4+2−5−1
=−5−8−6+7+4+2−5−1
=−13−6+7+4+2−5−1
=−19+7+4+2−5−1
=−12+4+2−5−1
=−8+2−5−1
=−6−5−1
=−11−1
=−12
+8 – 3 – 4+7–6–2 +5 – 3+9–6 =
=5−4+7−6−2+5−3+9−6
=1+7−6−2+5−3+9−6
=8−6−2+5−3+9−6
=2−2+5−3+9−6
=0+5−3+9−6
=5−3+9−6
=2+9−6
=11−6
=5
-7 + 4 + 2 – 6-8 +9–3 – 5 + 8 =
=−3+2−6−8+9−3−5+8
=−1−6−8+9−3−5+8
=−7−8+9−3−5+8
=−15+9−3−5+8
=−6−3−5+8
=−9−5+8
=−14+8
=−6
+10 – 15 – 5 + 20 – 8 - 2 + 4- 6+2=
=−5−5+20−8−2+4−6+2
=−10+20−8−2+4−6+2
=10−8−2+4−6+2
=2−2+4−6+2
=0+4−6+2
=4−6+2
=−2+2
=0
-9 + 3-2 +5-7-2-1 + 10 + 4
=−6−2+5−7−2−1+10+4
=−8+5−7−2−1+10+4
=−3−7−2−1+10+4
=−10−2−1+10+4
=−12−1+10+4
=−13+10+4
=−3+4
=1
+2 - 1.5 + 4.3 +5 - 2.3 - 8 + 1.5
=0.5+4.3+5−2.3−8+1.5
=4.8+5−2.3−8+1.5
=9.8−2.3−8+1.5
=7.5−8+1.5
=−0.5+1.5
=1
-0.4 + 4.6 + 2.3 +2.3 - 1.5
=4.2+2.3+2.3−1.5
=6.5+2.3−1.5
=8.8−1.5
=7.3
Saludos!xd
Respuesta:
xd espero que te sirva
Explicación paso a paso:
1.-1
2.-5
3.-12
4.5
5.-6
6.0
7.1
8.1
9.7.3