Question

ATENÇÃO - FAÇA OS CÁLCULOS NO CADERNO E COLOQUE SOMENTE O RESULTADO NA CAIXA DE RESPOSTA DE CADA EXPRESSÃO ABAIXO! a) (+5).(–2) = * 1 ponto b) (–6).( –6) = * 1 ponto c) ( +7).( –8).( –1) = * 1 ponto d) (–8).( –9).( –6).(+4) = * 1 ponto e) (–5) . (– 2) . (– 3) . (– 3) . (– 8) . (– 5) . (– 2) = *​

Answer 1

Resposta:

a) –10

b) +36

c) +56

d) –1728

e) –7200

Explicação passo a passo:

Negativo*negativo = positivo

Positivo*positivo = positivo

Negativo*positivo = negativo

a) (+5).(–2)

= –10

b) (–6).( –6)

= +36

c) (+7).( –8).( –1)

= (-56).(–1)

= +56

d) (–8).( –9).(–6).(+4)

= (+72).(–6).(+4)

= (–432).(+4)

= –1728

e) (–5).(–2).(–3).(–3).(–8).(–5).(–2)

= (+10).(–3).(–3).(–8).(–5).(–2)

= (–30).(–3).(–8).(–5).(–2)

= (+90).(–8).(–5).(–2)

= (–720).(–5).(–2)

= (+3600).(–2)

= –7200