Question

Cine ma poate ajuta? Dau 20 de puncte!!!

Answer 1

4)16,5+31,23+9=
16,50+31,23+9,00=
56,63

5)17,93-1,005-3,0102=
17,9300-1,0050-3,0102=
16,9250-3,0102=
13,9148

6)18+2,3159-7,123456=
18,000000+2,3159-7,123456=
20,315900-7,123456=
13,192444

7)1,01+2,02+3,03+4,04+5,05+6,06+7,07+8,08=
3,03+3,03+4,04+5,05+6,06+7,07+8,08=
6,06+4,04+5,05+6,06+7,07+8,08=
10,10+5,05+6,06+7,07+8,08=
15,15+6,06+7,07+8,08=
21,21+7,07+8,08=
28,28+8,08
36,36

8)
pt.4: 56,63=57la zecimi si la sutimi =56,6
5: 13,9148=14 = 13,9
6 : 13,192444=13 =13,2
7: 36,36=36 =36,4

9)a=0,20+2,02+2,22
=4,44
b=0,30+3,03+3,33
=6,66

a+b=4,44+6,66
= 11,10
b-a= 6,66-4,44
=2,22
a×b= 4,44×6,66
=29,5704
b÷a= 6,66÷4,44
=1,5

10)
M.A=(4,44+6,66+11,10+2,22+29,5704+1,5)÷6
=(11,10+11,10+2,22+29,5704+1,5)÷6 =(22,20+2,22+29,5704+1,5)÷6
= (24,4200+29,5704+1,500)÷6
=(53,9904+1,500)÷6
=55,4904÷6
=9,2484

11) 34°27'+78°43'=112°70'