Efetue : (/ divisão)
A) 14,3/ 6,5
B)7,5/ 0,2
C) 6/5
D)11,25/ 2,5
E) 13/33
F) 3/50
Calcule mentalmente
A)9,1/0,1
B)13,0,1
C)2,28/ 0,01
D) 7,4/ 0,01
Efetue:
A) 44,5/5
B)400,4/71,5
C)25,2/1,75
D)43,6/8
e)13/33
f)3/50
Me ajudem pfv
Soluções para a tarefa
Respondido por
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A) 14,3/6,5 = 143/10/65/10 = 143/10 × 10/65 = 1430/650= 2,2
B) 7,5/0,2= 75/10/2/10 = 75/10 × 10/2 = 750/20= 37,5
C)6/5 = 1,2
D) 11,25/2,5 = 1125/100/25/10 = 1125/100 × 10/25 = 11250/2500 = 4,5
E) 13/33 = da a dizima periodica 0,393939...
F) 3/50 = 0,06
----------------------------------------------------------------------A) 9,1/0,1= 91/10/1/10 = 91/10 × 10/1 = 91
B)13,0,1 ? - Em caso de ser 13/0,1 = 13/01/10 = 13 × 10/1 = 130
C)2,28/0,01 = 228/100/1/100 = 228/100 × 100/1 = 228
D) 7,4/0,01 = 74/10/1/100 = 74/10 × 100/1 = 740
----------------------------------------------------------------------A) 44,5/5 = 445/10/5/1= 445/10 × 1/5= 445/50 = 8,9
B) 400,4/71,5= 4004/10/715/10= 4004/10 × 10/715= 5,6
C) 25,2/1,75= 252/10/175/100= 252/10 × 100/175 = 2520/175= 14,4
D)43,6/8= 436/10/8/1= 436/10 × 1/8= 436/80= 5,45
B) 7,5/0,2= 75/10/2/10 = 75/10 × 10/2 = 750/20= 37,5
C)6/5 = 1,2
D) 11,25/2,5 = 1125/100/25/10 = 1125/100 × 10/25 = 11250/2500 = 4,5
E) 13/33 = da a dizima periodica 0,393939...
F) 3/50 = 0,06
----------------------------------------------------------------------A) 9,1/0,1= 91/10/1/10 = 91/10 × 10/1 = 91
B)13,0,1 ? - Em caso de ser 13/0,1 = 13/01/10 = 13 × 10/1 = 130
C)2,28/0,01 = 228/100/1/100 = 228/100 × 100/1 = 228
D) 7,4/0,01 = 74/10/1/100 = 74/10 × 100/1 = 740
----------------------------------------------------------------------A) 44,5/5 = 445/10/5/1= 445/10 × 1/5= 445/50 = 8,9
B) 400,4/71,5= 4004/10/715/10= 4004/10 × 10/715= 5,6
C) 25,2/1,75= 252/10/175/100= 252/10 × 100/175 = 2520/175= 14,4
D)43,6/8= 436/10/8/1= 436/10 × 1/8= 436/80= 5,45
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