oblicz
a) ( 5,6 * 1 1/8 - 5,3) * 1 1/9=
b) (10 - 2,4 : 1 1/7) * 0,2=
c) ( 5 ½ + 0,48 : 0,2) * 0,3 =
d) 6,5 – ( 1 ½)² * 2,4 =
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a)(56/10*9/8-5.3*10/9=(63/10-5,3)*10/9=(6,3-5,3)*10/9=1*10/9=1 1/9
b)(10-24/10*7/8)*0,2=(10-21/10)*0,2=(9 10/10-2 1/10)*0,2=7 9/10*2/10=79/10*2/10+79/5=15 4/5
c)(5 1/2+48/100*10/2)*3/10=(5 1/2+12/5)*3/10=(5 2/10+1 2/10)*3/10=6 4/10*3/10=19 2/10
d)6 5/10-9/4*24/10=6 5/10-5 4/10=1 1/10
a)
(5,6*1 1/8-5,3)*1 1/9=(5,6*1,125-5,3)*1 1/9=(6,3-5,3)*1 1/9=1*1 1/9=1 1/9
b)
(10-2,4:1 1/7)*0,2=(10-24/10:8/7)*0,2=(10-24/10*7/8)*0,2=(10-21/10)*0,2=
=(10-2,1)*0,2=7,9*0,2=1,58
c)
(5 1/2+0,48:0,2)*0,3=(5,5+2,4)*0,3=7,9*0,3=2,37
d)
6,5-(1 1/2)²*2,4=6,5-(1,5)²*2,4=6,5-2,25*2,4=6,5-5,4=1,1