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Răspunsuri la întrebare
3.a)2,4•10+59:10-18:2,5=
=24+5,9-7,2
=29,9-7,2
=22,7
b)1,2^2+2,1^2-0,0017•1000=
=1,44+4,41-1,7
=5,85-1,7
=4,15
c)400:200-1,73:10+5,6-4,5=
=2-0,173+5,6-4,5
=1,827+5,6-4,5
=7,427-4,5
=2,927
d)29:100+3,7•4-123:100=
=0,29+14,8-1,23
=15,09-1,23
=13,86
e)62:10-0,02•10+28,5•2,2=
=6,2-0,2+62,7
=6+62,7
=68,7
f)3,9•100+3,9:100-3,9^2=
=390+0,039-15,21
=390,039-15,21
=374,829
4.a)41,3+15,9-20,7=
=57,2-20,7
=36,5
b)8,71-3,29+15,2=
=5,42+15,2
=20,62
c)66,21+3,42-23,5-20,71=
=69,63-23,5-20,71
=46,13-20,71
=25,42
d)44,21-18,5-3,295=
=25,71-3,295
=22,415
e)0,729-0,521+0,104=
=0,208+0,104
=0,312
f)48,503-29,0291+18,5053=
=19,4739+18,5053
=37,9792
g)4,7•100:5=
=470:5
=94
h)3,29•10:4=
=32,9:4
=8,225
i)4987,3:100•50=
=49,873•50
=2493,65
j)2,4•0,25:0,02=
=0,6:0,02
=30
k)3,5^3:3,5•3,5^0=
=42,875•1
=42,875
l)1,2^2:1,2-1,2=
=1,44:1,2-1,2
=1,2-1,2
=0
m)6,7+6,7^2:6,7-6,7=
=6,7+44,89:6,7-6,7
=6,7+6,7-6,7
=13,4-6,7
=6,7
n)123,23-3,4^2:3,4-12,57=
=123,23-11,56:3,4-12,57
=123,23-3,4-12,57
=119,83-12,57
=107,26
5.a)4,71•10-3,7=
=47,1-3,7
=43,4
b)29,56-5+14,8•7,2=
=29,56-5+106,56
=24,56+106,56
=131,12
c)81,4-3,1•10,8=
=81,4-33,48
=47,92
d)7,8:2+9,6•3,2=
=3,9+30,72
=34,62
e)14,49:7-0,026•13=
=2,07-0,338
=1,732
f)41,41:41+2•2•2=
=1,01+4•2
=1,01+8
=9,01