1. LISTA PLANTÃO – 12 – 7º ano
Aluno(a):__________________________________________________________________________________
1 – Resolva as expressões:
𝟏 𝟐 𝟏
𝒂] − 𝟑
+ − 𝟑
+ − 𝟐
= _______________________________________________________________________________________
𝟑 𝟏 𝟐
𝒃] − − − + − = _____________________________________________________________________________________
𝟒 𝟑 𝟓
𝟓 𝟏 𝟐
𝒄] − + + + = _____________________________________________________________________________________
𝟑 𝟒 𝟕
𝟑 𝟏 𝟏 𝟐
𝒅] − − + + − + = _____________________________________________________________________________
𝟒 𝟐 𝟓 𝟑
𝟓 𝟏 𝟐
𝒆] + − − − = _______________________________________________________________________________________
𝟑 𝟐 𝟑
𝟑 𝟐 𝟏
𝒇] − − − + − = _____________________________________________________________________________________
𝟓 𝟑 𝟐
𝟏 𝟏 𝟑
𝒈] − ∙ − ∙ = _______________________________________________________________________________________
𝟑 𝟐 𝟐
𝟏 𝟐 𝟏
𝒉] − ∙ − ∶ − = _______________________________________________________________________________________
𝟑 𝟓 𝟐
2 – Calcule e simplifique o resultado quando possível:
𝟑 𝟏
𝒂] 𝟐 ∙ + = ___________________________________________________________________________________________________
𝟓 𝟕
𝟑 𝟐 𝟏
𝒃] ∙ + = ___________________________________________________________________________________________________
𝟓 𝟓 𝟐
𝟏 𝟐 𝟐
𝒄] ∙ + = ___________________________________________________________________________________________________
𝟕 𝟑 𝟓

2. 𝟏
𝒅] − 𝟑 ∙ 𝟒 + = ________________________________________________________________________________________________
𝟓
𝟖 𝟏 𝟐
𝒆] ∙ − = __________________________________________________________________________________________________
𝟑 𝟐 𝟑
𝟏 𝟐 𝟏
𝒇] ∙ − = ___________________________________________________________________________________________________
𝟐 𝟑 𝟔
𝟑 𝟏 𝟏
𝒈] ∙ − = ___________________________________________________________________________________________________
𝟕 𝟒 𝟔
𝟏 𝟑
𝒉] − 𝟓 ∙ − = _________________________________________________________________________________________________
𝟐 𝟒
3 – Assinale as sentenças verdadeiras:
𝟏 𝟐 𝟐 𝟑 𝟐 𝟗
𝟎
𝒂] 𝟐
= 𝟒
𝒃] − 𝟕 = 𝟏 𝒄] − 𝟐
= 𝟒
𝟕 𝟏 𝟑 𝟏
𝟑
𝒅] − 𝟓
= 𝟎 𝒆] − 𝟐 = 𝟖 𝒇] − 𝟓
= 𝟏
𝟏 𝟐 𝟏 𝟓 𝟑
𝟐
𝒈] − 𝟐
= 𝟒
𝒉] − 𝟑 = 𝟔 𝒊] 𝟑
= 𝟑
𝟐 𝟑 𝟐 𝟎
𝒋] 𝟕
= 𝟏 𝒌] 𝟏 𝟎 = 𝟎 𝒍] − 𝟑
= −𝟏
4 – Calcule:
𝒂] 𝟑−𝟐 = __________ 𝒃] 𝟓−𝟐 = __________ 𝒄] 𝟖−𝟐 = __________
𝟐 −𝟐 𝟏 −𝟑 𝟑 −𝟐
𝒅] 𝟑
= __________ 𝒆] 𝟓
= __________ 𝒇] − 𝟒
= __________
𝒈] 𝟓−𝟑 = __________ 𝒉] 𝟗−𝟐 = __________ 𝒊] 𝟏𝟎−𝟑 = __________
𝟓 −𝟐
𝒋] 𝟒−𝟏 = __________ 𝒌] 𝟑
= __________ 𝒍] 𝟕−𝟏 = __________