The document discusses the laws of signs in mathematics. It explains that addition uses a plus sign, subtraction uses a minus sign, multiplication uses an x sign, and division uses a slash sign. It then provides the rules for determining the sign of the answer for addition, subtraction, multiplication, and division based on the signs of the numbers being used in the operation. Finally, it discusses the order of operations using grouping symbols like parentheses, brackets, braces, and bars.

1. Ley de Signos y signos de
agrupación
Matemáticas
12 pag.
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2. Ley de Signos
Greeys Estefanía Velásquez Monroy
Daniela Andrea Urbina Hernández
Alma Rebecka Álvarez Hernández
Neida Sofía Díaz Gutiérrez
Christopher Jeanfranco Duarte Chinchilla
Paula Daniela Santay Gordillo
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3. • Ley de Signos en Matemáticas
SUMA
+
DIVISION
RESTA
-
MULTIPLICACION
X /
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4. • Ley de signos para Suma y Resta
(+) + (+) (+) + (-) (-) + (-)
Se suma Se resta y se pone el
signo del numero mayor
Se suma y se pone el
signo -
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5. EJEMPLOS
4 + 8= (-5) + (-6)= -7 + 4=
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6. • Ley de signos para Multiplicación.
(+) x (+) = +
(+) x (-) = -
(-) x (-) = +
(-) x (+) = -
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7. EJEMPLOS
(-4) X 8= (-9) X (-4)= 7 X 12=
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8. • Ley de signos para división
(+) / (+) = +
(+) / (-) = -
(-) / (-) = +
(-) /(+) = -
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9. EJEMPLOS
(-12) / 3= (-9) / (-3)= 29 / 7=
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10. • Ley de signos de agrupación
Corchete
[]
Vínculo
ӀӀ
Llaves
{}
Paréntesis
()
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11. EJEMPLOS
• 2 – {5 + 3 [4 + 2 – 5 ]}
• 8−{2+5−[6+(7−5)−12]}
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