1) /=supra
9 zecimii=9/ 10
8 miimi=8 / 1000
7 zecimii si 2 sutimii=7/10 si 2/100
2 sutimii=2/100
87 de zecimi si miimi=870/1000
6 zecimii ,5 sutimi și 4 miimi=6/10 ,5/100,4/1000
2) /=supra,^=la puterea
12/1000=0,012
3/10^3=3/100=0,03
2323/10^3=2323/1000=
2,323
1581/10=15,81
20000/100=20,00=20
4500/100=45,00=45
20/10000=500
1întreg și 17578/10^3=1întreg și 17578/1000=18578/1000=
18,578
3)/=supra, (=amplificare
a)1/2 (10=10/20
1/4 (10=10/40
1/5 (10=10/50
1/10 (10=10/100
1/20 (10 =10/200
1/25 (10=10/250
1/50 (10=10/500
1/200 (10=10/2000
b)
8/125 (10=80/1250
83/500(10=830/5000
7264/250(10=72640/2500
11/8 (10 =110/80
3/40 (10=30/400
7/80 (10=70/800
c)^ la puterea
1/2^2×5 =1/4×5=1/20(10=10/200
1/5^2×2=1/25×2=1/50(10=10/500
7/2^2=7/4 (10=70/40
17/2^3=17/8 (10=170/80
13/5×2^3=13/5×8=13/40(10=130/400
8/5^3=8/125(10=80/1250
23/5^4=23/625(10=230/6250
4)/=supra
a)0,6=6/10
0,21=21/100
0,09=9/100
0,725=725/1000
0,00007=7/100000
b)3,7=37/10
24,08=2408/100
376,125=376125/1000
67,1234=671234/10000
18,7=187/10
2,000009=2000009/1000000
193,193=193193/1000
29,0001=290001/100000
5)
a)5,4; 5,37; 5,39; 3; 3,487; 3,73
3; 3,73 ; 3,487; 5,4; 5,37; 5,39
b)1,87; 1,78; 1,879; 1,978; 1,987; 2,1; 2,101; 2,101001
1,78; 1,87;1,879;1,978;1,987;2,1;2,101;2,101001
C-am puține puncte 5 p serios ? Îmi d-ai coroană!!??
