10.- Calcula las siguientes sumas de números enteros como en el ejemplo:
(+4) – (- 3) = (+4) + (+3) = +4 + 3 = +7 (+6) – (+9) = (+6) + (-9 ) = +6 – 9 = -3
(-12 ) - (+15) =
(-7 ) - (+3 ) =
(-8 ) - (-7 ) =
(+13 ) - (+8) =
(+14 ) - ( -12) =
(+4 ) - (- 16) =
( 0 ) - (-3 ) =
(+4 ) - ( 0 ) =
Respuestas
Respuesta dada por:
1
Respuesta:
a= 0
b= 27
c = 10
d= -1
e = 5
f = 26
g = 20
h = 3
i = 4
Total= 16
Explicación paso a paso:
(+4) – (- 3) = (+4) + (+3) = +4 + 3 = +7 (+6) – (+9) = (+6) + (-9 ) = +6 – 9 = -3
4+3 = 4+3 = 4+3 = 7+6-9 = 6-9 = 6-9 = -3
7 = 7 = 7 = 4 = -3 = -3 +3
7 = 7 = 7 = 4+3
7 = 7 = 7 -7
7- 7
0
(-12 ) - (+15) =
> -12-15=27
(-7 ) - (+3 ) =
> -7-3=10
(-8 ) - (-7 ) =
> -8+7=-1
(+13 ) - (+8) =
>13-8=5
(+14 ) - ( -12) =
>14+12=26
(+4 ) - (- 16) =
>4+16=20
( 0 ) - (-3 ) =
>0+3=3
(+4 ) - ( 0 ) =>4-0=4
27= 10= -1 = 5 = 26 = 20 = 3 = 4
27= 10= -1 = 5 = 26 = 20 = 3-4
27= 10= -1 = 5 = 26 = 20+1
27= 10= -1 = 5 = 26-21
27= 10= -1 = 5-5
27= 10= -1 +0
27= 10+1
27-11
16
chenrui14052009:
gracias
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