LISTA PLANTÃO – 12 – 7º ano

Aluno(a):__________________________________________________________________________________

1 – Resolva as expressões:

𝒂] −𝟏

𝟑 + −

𝟐

𝟑 + −

𝟏

𝟐 = _______________________________________________________________________________________

𝒃] −𝟑

𝟒 − −

𝟏

𝟑 + −

𝟐

𝟓 = _____________________________________________________________________________________

𝒄] 𝟓

𝟑 − +

𝟏

𝟒 + +

𝟐

𝟕 = _____________________________________________________________________________________

𝒅] 𝟑

𝟒 − −

𝟏

𝟐 + +

𝟏

𝟓 − +

𝟐

𝟑 = _____________________________________________________________________________

𝒆] 𝟓

𝟑 + −

𝟏

𝟐 − −

𝟐

𝟑 = _______________________________________________________________________________________

𝒇] −𝟑

𝟓 − −

𝟐

𝟑 + −

𝟏

𝟐 = _____________________________________________________________________________________

𝒈] −𝟏

𝟑 ∙ −

𝟏

𝟐 ∙

𝟑

𝟐 = _______________________________________________________________________________________

𝒉] −𝟏

𝟑 ∙ −

𝟐

𝟓 ∶ −

𝟏

𝟐 = _______________________________________________________________________________________

2 – Calcule e simplifique o resultado quando possível:

𝒂] 𝟐 ∙ 𝟑

𝟓+

𝟏

𝟕 = ___________________________________________________________________________________________________

𝒃] 𝟑

𝟓 ∙

𝟐

𝟓+

𝟏

𝟐 = ___________________________________________________________________________________________________

𝒄] 𝟏

𝟕 ∙

𝟐

𝟑+

𝟐

𝟓 = ___________________________________________________________________________________________________

𝒅] − 𝟑 ∙ 𝟒 + 𝟏

𝟓 = ________________________________________________________________________________________________

𝒆] 𝟖

𝟑 ∙

𝟏

𝟐 −

𝟐

𝟑 = __________________________________________________________________________________________________

𝒇] 𝟏

𝟐 ∙

𝟐

𝟑−

𝟏

𝟔 = ___________________________________________________________________________________________________

𝒈] 𝟑

𝟕 ∙

𝟏

𝟒−

𝟏

𝟔 = ___________________________________________________________________________________________________

𝒉] − 𝟓 ∙ 𝟏

𝟐−

𝟑

𝟒 = _________________________________________________________________________________________________

3 – Assinale as sentenças verdadeiras:

𝒂] 𝟏

𝟐 𝟐

= 𝟐

𝟒 𝒃] − 𝟕 𝟎 = 𝟏 𝒄] −

𝟑

𝟐 𝟐

= 𝟗

𝟒

𝒅] − 𝟕

𝟓 𝟏

= 𝟎 𝒆] − 𝟐 𝟑 = 𝟖 𝒇] − 𝟑

𝟓 𝟏

= 𝟏

𝒈] − 𝟏

𝟐 𝟐

= 𝟏

𝟒 𝒉] − 𝟑 𝟐 = 𝟔 𝒊]

𝟓

𝟑 𝟑

= 𝟑

𝒋] 𝟐

𝟕 𝟑

= 𝟏 𝒌] 𝟏𝟎 = 𝟎 𝒍] −𝟐

𝟑

𝟎= −𝟏

4 – Calcule:

𝒂] 𝟑−𝟐 = __________ 𝒃] 𝟓−𝟐 = __________ 𝒄] 𝟖−𝟐 = __________

𝒅] 𝟐

𝟑 −𝟐

= __________ 𝒆] 𝟏

𝟓 −𝟑

= __________ 𝒇] − 𝟑

𝟒 −𝟐

= __________

𝒈] 𝟓−𝟑 = __________ 𝒉] 𝟗−𝟐 = __________ 𝒊] 𝟏𝟎−𝟑 = __________

𝒋] 𝟒−𝟏 = __________ 𝒌] 𝟓

𝟑 −𝟐

= __________ 𝒍] 𝟕−𝟏 = __________