

Operaçoes com números negativos
Presentation
•
Mathematics
•
5th - 7th Grade
•
Practice Problem
•
Medium
daniela doce
Used 20+ times
FREE Resource
3 Slides • 6 Questions
1
Operaçoes com números negativos

2
Soma/Subtração
Regra: Fica o sinal anterior ao maior valor
−5−4=−9
−5+4=−1
5−4=1
5+4=9
3
Multiple Choice
−9+10
−1
1
−19
19
4
Multiple Choice
−9−4
13
5
−5
−13
5
Multiple Choice
−21+24
25
−25
23
−23
6
Multiplicação/Divisão
Regra: Quando se multiplica ou divide números com o mesmo sinal (2 positivos ou 2 negativos), o número é positivo. Caso contrário, é negativo
−5×4=−20
5×−4=−20
5×4=20
−5×−4=20
7
Multiple Choice
−5×3
15
−15
8
Multiple Choice
21×23
43
23
9
Multiple Choice
−4÷(−2)
−2
2
Operaçoes com números negativos

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