VAMOS APLICAR
Observe como Carla e Ricardo, calculando
mentalmente, descobriram a raiz de uma<...
![Mathematics](/tpl/images/cats/mat.png)
Mathematics, 12.02.2021 20:30, deadpoolcorvettehats
VAMOS APLICAR
Observe como Carla e Ricardo, calculando
mentalmente, descobriram a raiz de uma
equação.
Essa é fácil!
Hum. É 15!
E só pensar que
15 + 10 = 251
numero adicionado
alo da 25.
In+10=25
Agora, descubra a raiz de:
= 15
Como você pensaria para encontrar o número
que dividido por 3 dá 15?
Converse com um colega sobre como vocês
pensaram para chegar a resposta.
2 Encontre mentalmente a raiz de cada equação
e escreva-a no caderno.
a) 10x = 15
c) x 1-1) = -5
1
1
b) x
d) x
2
10
![answer](/tpl/images/cats/otvet.png)
Answers: 2
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