plliss pomóżcie mi!! błagam!!! plose ślicnie;p
Oblicz.
a) 10 : 2/3 x 1 1/2=...........
b) 12 x 2 3/4 : 2 3/4=..........
c) 4 1/2 : 1 1/2 - 1 3/4=.................
d) 20 - 6 3/4 : 4 1/2=..................
Jak coś to zadanie 6 str.82 ćwiczenie Matematyka wokół nas część 1.
pliss na dzisiaj! dam najj!
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a)11.2
b)12
c)1.25
d)20 - 1.5=18.5
a) 10 : 2/3 x 1 1/2=10*3/2 *3/2= 15*3/2=45/2=22 1/2
b) 12 x 2 3/4 : 2 3/4=.12*11/4:11/4= 3*11* 4/11= 33 *4/11= 3*4=12
c) 4 1/2 : 1 1/2 - 1 3/4=.9/2:3/2-1 3/4= 9/2 * 2/3-1 3/4= 3 - 1 3/4= 2 4/4 - 1 3/4= 1 1/4
d) 20 - 6 3/4 : 4 1/2= 20 - 27/4 : 9/2= 20- 27/4* 2/9=20-3/2= 20 - 1 1/2= 19 2/2- 1 1/2=18 1/2