
Multiplicação e divisão de inteiros
Presentation
•
Mathematics
•
7th Grade
•
Practice Problem
•
Medium
Used 293+ times
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5 Slides • 8 Questions
1
Multiplicação e divisão de números inteiros
Regrinha de sinais.
2
Multiplicação e divisão de números inteiros.
Para multiplicar ou dividir números inteiros, a princípio, as operações devem ser realizadas considerando apenas seus valores.
O resultado será positivo ou negativo, dependendo apenas dos sinais serem iguais ou diferentes.
3
Ao multiplicar ou dividir números inteiros de mesmo sinal o resultado será sempre positivo.
3 x 2 = 6
-3 x (-2) = 6
10 : 2 = 5
-10 : (-2) = 5
4
Nos casos de multiplicar ou dividir números inteiros com sinais diferentes, o resultado será sempre negativo.
5 x (-6) = -30
-4 x 7 = -28
-28 : 4 = -7
30 : (-5) = -6
5
6
Math Response
a) 5 x 23 =
7
Math Response
B) -12 x (-6) =
8
Math Response
C) 56 x (-4) =
9
Drag and Drop
10
Match
Combine divisões com seus respectivos resultados.
15 : 3 =
-80 : (-4) =
-100 : 5 =
50 : (-5) =
5
20
-20
-10
5
20
-20
-10
11
Multiple Choice
Atenção nas regras da adição e subtração.
-20
-18
18
34
12
Match
A
B
C
D
-4
-15
-5
7
-4
-15
-5
7
13
Multiple Choice
Qual expressão descreve o total de pontos?
5 x 3 + 3 x 2 = 21
5 x (-3) -2 x (-2) = 19
5 x 3 + 3 x (-2) = 9
8 x 3 -2 x 3 = 18
Multiplicação e divisão de números inteiros
Regrinha de sinais.
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