Matematyka

Autorzy:Ewa Duvnjak, Ewa Kokiernak-Jurkiewicz

Wydawnictwo:WSiP

Rok wydania:2015

Oblicz 4.25 gwiazdek na podstawie 8 opinii
  1. Gimnazjum
  2. 1 Klasa
  3. Matematyka

`a)\ 3,375+4 1/6-2 2/3=3 3/8+3 7/6-2 4/6=3 3/8+1 3/6=3 3/8+1 1/2=`

`\ \ \ =3 3/8+1 4/8=4 7/8`

 

`b)\ 10 2/3-4 7/8+5/6=10 16/24-4 21/24+20/24=10 36/24-4 21/24=`

`\ \ \ =6 15/24=6 5/8`

 

`c)\ 5,25-2 2/3-1 5/6=5 1/4-2 2/3-1 5/6=5 3/12-2 8/12- 1 10/12=`

`\ \ \ =4 15/12-2 8/12-1 10/12=2 7/12-1 10/12=1 19/12- 1 10/12=9/12=3/4`

 

`d)\ 4,5+6 3/4-(12-5 3/8)=4 1/2+6 3/4-6 5/8=4 4/8+6 6/8-6 5/8=`

`\ \ \ =10 10/8-6 5/8=4 5/8`

 

`e)\ 8 1/2-1,75-(1 3/4+1 2/3)=8 1/2-1 3/4-(1 9/12+1 8/12)=`

`\ \ \ =8 2/4-1 3/4-2 17/12=7 6/4-1 3/4-3 5/12=`

`\ \ \ =6 3/4-3 5/12=6 9/12-3 5/12=3 4/12=3 1/3`

 

`f)\ 4 5/6+2,5-3 2/3+5 1/12=4 10/12+2 1/2-3 8/12+5 1/12=`

`\ \ \ =9 11/12+2 6/12-3 8/12=11 17/12-3 8/12=8 9/12=8 3/4`