Question

zad.4.str.35

2/5*(1/2-1/6)=

4,8+1/3*(1,2-0,6)=

(1-7/9)*(5,2-0,6)=

123/10+0,2*6,1=

(6,5-4,7):(4-2 1/5 ) =

zad.2

1-(3/4)2=

1+3/7:1/7=

(0,6+0,9):3=

10*(0,5+1/4)=

0,3+0,5*4=

1/2*3/4-0,5*0,75=

(0,1+0,1*15)*10=

Z góry dziękuje ;)

Answer 1

zad4) 

 

 

 

 

 

zad2)

 

 

 

 

 

 

Answer 2

zad.4.str.35

2/5*(1/2-1/6)= 2/5 · (3/6 - 1/6) = 2/5 · 2/6 = 4/30 = 2/15

4,8+1/3*(1,2-0,6)= 4,8 + 1/3 · 6/10 = 4,8 + 3/15 = 48/10 + 3/15 = 144/30 + 6/30 = 5

(1-7/9)*(5,2-0,6)= 2/9 · 46/10 = 92/90 = 1 cała i 1/45

123/10+0,2*6,1=  123/10 + 2/10 · 61/10 = 1230/100 + 122/100 = 1352/100 = 13,52

(6,5-4,7):(4-2 1/5 ) = 18/10 : 9/5 = 18/10 · 5/9 = 90/90 = 1

 

zad.2

1-(3/4)2= 1 - 9/16 = 7/16

1+3/7:1/7= 1 + 3/7 · 7/1 = 1+ 21/7 = 4

(0,6+0,9):3=  1,5 : 3 = 0,5

10*(0,5+1/4)= 10 · 75/100 = 750/100 = 7,5

0,3+0,5*4= 0,3 + 2 = 2,3

1/2*3/4-0,5*0,75= 3/8 - (5/10 · 75/100) = 3/8 - 0,375 = 0,375 - 0,375 = 0

(0,1+0,1*15)*10= (0,1 + 1,5) · 10 = 1,6 · 10 = 16