Ha qeeTKe cnAenn Tpvr 6a6o.{RtA. K nfm nphneTenyl eqe ABe. Sa6oqeK crano 6onbtue. Kax y3Harb, cKonbxo HMenno? Paccmorph KaprhHry u pacKpacb phcyHoK. r
Ifpovrh npaB)Ano.
fleiacrBhe, B pe3yrbrare Koroporo Mbl npwdaBnfeM qhcna Apyr K APYTY, Ha3HBaeTCf CnOlKeH HeM. Ana sanncn ucnonb3yrlr qt4Qpu l,l cnel{hanbHble 3HaKh:
-3
+ fln,oc
-PaeHo
5
Cymma Bropoe llepeoe c/raFaeMoe cnaraeMoe Koah.{ecrBo npeAMeroB, KoToPoe 6ulno BHaqane, - 3To
nepBoe craFaeMoe. Koah.{ecrBo npeAMeToB, Koropoe npn6aannn, - 3To BTOpOe CraraeMoe. Konh.{ecrBo npeAMeToB, Koropoe nonyqhnocb, - 9To cyMMa. 3uax + Ha3btBaercf nrtoc. 3ro 3HaK croxeHl4*. 3nax = Hil3btBaercn paBHo t4 o6ogHaqaer, qro nonyqhrcfl B
Pe3yrbrare AercrBufl.
Paccmorpu h pacKpacb pl,tcyHnt't.
3anolHu nycTbre KneToqR)A, Ha3uBaR craraeMbre, cyMMy h 3HaK u 4eilcTB)4A.
+
Paccmorpu h pacKPacb KaPTrHKY. Bn4no, qro ecnvr r rp€m cKpenKaM npr6aB1rb ABe nonyq nTcA nf,Tb. V ecnU K AByM npU6aBHTb TP)A, / TO nony|{.urcfl Toil(e nflTb.
BaxHoe nPaBuno: l-lpr nepeMeHe Mecr cnaraeMblx cyMMa He MCHflCTCR.
+ 8W flapc 2 Bropoe cnaraeMoe
[email protected] 2 llepeoe c,laraeMoe
-PaaHo Cymma
+ flnroc Cyr'tma
,
Paccmorpr KapTHHKy. Ecnu x rp6m MauIhHKaM He nph6aerru Hr TO UX OCTaHeTCff TpU, TO eCTb
He h3MeHhTCf
V1X
oAH KOAhqeCTBO
.
oil,
r
llpaauno: Ecnu oAHo v13 cnaraeMbtx paBHo Hyrp, ro cyMMa paBHa ApyroMy cnaraeMoMy.
/--f\
ffi
=iiiil\
3
a
Tpu
llnpc
Her
PaeHo
MAI.IJNHRVI MAU]4HOK t{ro6u 3anhcarb raroil nphMep, or
Tpn MAUIUHKU
cTBhe npeAMeroB
o6osHaqapr cneqharbHbtM 3HaKoM 0 - nylb.
Paccmorp% h pacKpacb KaPTrHKY.
hs uecTn nrrqer ocrarocb qerbtP€, noroMy qro u3 HUX yrereflh.
fieiacrBhe, B pe3ynbrare Koropot-o
ABe
Mbl
oTHl,lMaeM OAHO t{]4CrlO OT ApyrOrO, Ha3HBaeTCfi Bblt{hTaH J4eM.
Ann sanucll t4cnonb3ypr qhQpu h cneqranbHHe 3HaKh:
Mrnyc 2 PaaHo 4 YmenbuaeMoe Bul.{HTaeMoe PasHocru 6
KoarqecTBo npeAMeToB, KoTopoe 6uao BHaqarle, - 3To yMeHbuaeMoe. KoarqecrBo npeAMeroB, Koropoe orHf,Al,l, - 9To Bbtr{HTaeMOe.
KoarqecrBo npeAMeroB, Koropoe nonyvunocb, - 9To pa3HocTb.
3nar -
Ha3btBaeTCR MHHyc. 9TO 3HaK BblqhTaHVlA.
Paccmorpu h pacKpacb pucytrtvi. 3anonHh nycrbte KneToq Ky., Ha3btBaf yMeHbuJaeMoe, BbrqrTaeMoe, pa3HocTb h 3HaKu ryeilcTBvr*.
\*/
ffi=ffiffi
Paccmorpr h pacKpacb KaprhHKy. Br4no, qro ecn r or AByx cnoHoB orHfrb ABa, TO He OCTaHeTCf, Hl4 OAHOTO CrOHa.
llpaenno: Ecnu Bblr{hraeMoe paBHo yMeHbuaeMoMy, TO UX pa3HOCTb paBHa Hy,l}o.
2 4ea cnoHa
r*,*-v.
ir^
C,|IOHA
,rF"o
0 Hn o4noro C.'IOHA
9ro6u 3anhcarb raKoh npuM€P, orcyrcrBt4e npeAMeroB o6osHaqapr yxe 3HaKoMbtM HaM 3HaKom 0 - Hyrb.
Paccmorpu KaprhHKy. K .ferupeM BHUeHKaM npr6ail4nn eu4e HecxolbKo, u B pe3ynbTaTe norytlh/locb ceMb BHueHoK.
HehgeecrHoe KorhqecrBo npe4MeroB nPu croxeHuu Ha3btBaK)T HeH3BeCTHbtM CnaFaeMbtM, r(oTopoe Mbl
o6ogFraqrM
gxarol
?
@\ #\ rstlss 4 HgeecrHoe
craraeMoe
?a
Ilatoc
.
HehgeecrHoe
-PaeHo
7 Cymma
craraeMoe 9ro6u naitru Hel43BecrHoe craraeMoe, l,lcnoIb3ypT npaBhno:
9ro6ut HanTn Heh3BecrHoe cnaFaeMoe, HyxHo u3 cyMMbt BHqecTb H3BecTHoe