Question

5 dela testul unu și tot testu doi

Answer 1

5.
4/8+3/8=7/8 (a folosit)
8/8-7/8=1/8 (a ramas nefolosita)

2.
a.subunitara -> 4/9
b.echiunitara -> 5/5
c.supraunitara -> 6/8

3.
a. 5/7 > 2/7
b. 3/9 < 8/9
c. 6/6 = 8/8

4.
a. 2/5 + 3/5 = 5/5 = 1
9/5 - 5/5 = 4/5
=> 2/5 + 3/5 > 9/5 - 5/5
b.
6/10 - 4/10 = 2/10 = 1/5
3/10 - 4/10 = 7/10
=> 6/10 - 4/10 < 3/10 - 4/10
c.
8/9 - 3/9 = 5/9
2/9 + 3/9 = 5/9
=> 8/9 - 3/9 = 2/9 + 3/9

5. 
Intrebare suplimentara: Cate baloane rosii sunt in cutie?

18 : 9 x 3 = 2 x 3 =6  (baloane rosii)
18 - 6 = 12 (baloane albastre)
Raspuns : 6 baloane rosii
                  12 baloane albastre