zad.1 oblicz pamiętając o kolejności wykonywania działań
a) 1 1/4* 6 - 3 :1 1/5 =
b) (4 3/8 - 1 2/3 ) :3 3/4 =
c) 2 1/5 - 1 1/6 :2 1/3 =
c) [( 3/8 + 1/6) :3 1/4 ]-(1/3)potega 3 =
zad.2 rozwiąż równanie i sprawdź je.
a) 2 5/6: c =4 1/4
b) 2 2/5 * d = 9
zad.3 oblicz
a) 3/4 liczby 360
b) 2/5 liczby 150
c) 1 3/10 liczby 900
d) 2 1/2 liczby 300
* znaczy razy
/ kreska ułamkowa
potega 3 - do potegi 3
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
a) 1 1/4* 6 - 3 :1 1/5 = 5/4 * 6 - 3 : 6/5= 15/2 - 3 * 5/6 = 15/2 - 5/2 = 10/2 = 5
b) (4 3/8 - 1 2/3 ) :3 3/4 = (35/8 - 5/3) : 15/4 = (105/24 - 40/24) * 4/15 = 65/24 * 4/15 = 13/18
c) 2 1/5 - 1 1/6 :2 1/3 = 11/5 - 7/6 * 3/7 = 11/5 - 1/2 = 22/10 - 5/10 = 17/10 = 1,7
c) [( 3/8 + 1/6) :3 1/4 ]-(1/3)potega 3 = [(9/24 + 4/24) : 13/4] - 1/27 = 13/24 * 4/13 - 1/27 = 1/6 - 1/27 = 9/54 - 2/54 = 7/54
a) 2 5/6: c =4 1/4
17/6 : c = 17/4
c = 17/6 : 17/4
c = 17/6 * 4/17
c = 2/3
spr 17/6 : 2/3 = 17/6 * 3/2 = 17/4 = 4 1/4
b) 2 2/5 * d = 9
12/5 * d = 9
d = 9 : 12/5
d = 9 * 5/12
d = 15/4
spr 12/5 * 15/4 = 9
zad.3 oblicz
a) 3/4 liczby 360 = 3/4 * 360 = 90 * 3 = 270
b) 2/5 liczby 150 = 2/5 * 150 = 2 * 30 = 60
c) 1 3/10 liczby 900 = 13/10 * 900 = 13 * 90 = 1170
d) 2 1/2 liczby 300 = 5/2 * 300 = 5 * 150 = 750
ZAD1
OBLICZ PAMIĘTAJĄC O KOLEJNOŚCI WYKONYWANIA DZIAŁAŃ:
a) 1 1/4* 6 - 3 :1 1/5 = 5/4 * 6 - 3 : 6/5= 15/2 - 3 * 5/6 = 15/2 - 5/2 = 10/2 = 5
b) (4 3/8 - 1 2/3 ) :3 3/4 = (35/8 - 5/3) : 15/4 = (105/24 - 40/24) * 4/15 = 65/24 * 4/15 = 13/18
c) 2 1/5 - 1 1/6 :2 1/3 = 11/5 - 7/6 * 3/7 = 11/5 - 1/2 = 22/10 - 5/10 = 17/10 = 1,7
c) [( 3/8 + 1/6) :3 1/4 ]-(1/3)potega 3 = [(9/24 + 4/24) : 13/4] - 1/27 = 13/24 * 4/13 - 1/27 = 1/6 - 1/27 = 9/54 - 2/54 = 7/54
ZAD2
ROZWIĄŻ RÓNANIA I SPRAWDŹ JE:
a) 2 5/6: c =4 1/4
17/6 : c = 17/4
c = 17/6 : 17/4
c = 17/6 * 4/17
c = 2/3
spr:17/6 : 2/3 = 17/6 * 3/2 = 17/4 = 4 1/4
b) 2 2/5 * d = 9
12/5 * d = 9
d = 9 : 12/5
d = 9 * 5/12
d = 15/4
spr: 12/5 * 15/4 = 9
ZAD3
OBLICZ:
a) 3/4 liczby 360 = 3/4 * 360 = 90 * 3 = 270
b) 2/5 liczby 150 = 2/5 * 150 = 2 * 30 = 60
c) 1 3/10 liczby 900 = 13/10 * 900 = 13 * 90 = 1170
d) 2 1/2 liczby 300 = 5/2 * 300 = 5 * 150 = 750