https://xn----7sbabaabj4apryvcx3ed0u.xn--p1ai/history-of-mathematics/2026-04-21T19:11:02+03:00https://xn----7sbabaabj4apryvcx3ed0u.xn--p1ai/istoriya-vozniknoveniya-chisel-ot-zarubok-na-kostyah-do-pervyh-simvolov/2026-04-21T19:10:49+03:00https://xn----7sbabaabj4apryvcx3ed0u.xn--p1ai/unary-numeral-system/2026-03-22T19:14:10+03:00https://xn----7sbabaabj4apryvcx3ed0u.xn--p1ai/nepoziczionnaya-sistema-schisleniya-chto-eto-i-kak-ona-rabotaet-osnovy-dlya-nachinayushhih/2026-03-22T19:15:03+03:00https://xn----7sbabaabj4apryvcx3ed0u.xn--p1ai/poziczionnaya-sistema-schisleniya-chto-eto-i-ee-rol-v-sovremennoj-matematike/2026-03-22T19:18:11+03:00https://xn----7sbabaabj4apryvcx3ed0u.xn--p1ai/decimal-number-system/2026-03-24T10:06:08+03:00https://xn----7sbabaabj4apryvcx3ed0u.xn--p1ai/alphabetic-number-system/2026-03-29T17:25:15+03:00https://xn----7sbabaabj4apryvcx3ed0u.xn--p1ai/klinopis-shumerov-kak-zarozhdalas-pervaya-sistema-pisma-v-istorii-chelovechestva/2026-03-29T18:10:42+03:00https://xn----7sbabaabj4apryvcx3ed0u.xn--p1ai/chisla-v-drevnem-egipte-zagadochnye-ieroglify-i-sistema-schisleniya/2026-03-29T20:22:04+03:00https://xn----7sbabaabj4apryvcx3ed0u.xn--p1ai/vavilonskaya-sistema-schisleniya-ot-otsutstviya-nulya-do-poziczionnogo-princzipa-revolyucziya-v-matematike/2026-03-29T20:22:13+03:00https://xn----7sbabaabj4apryvcx3ed0u.xn--p1ai/rimskie-czifry-istoriya-vozniknoveniya-i-znachenie-v-antichnom-mire/2026-03-29T20:53:43+03:00https://xn----7sbabaabj4apryvcx3ed0u.xn--p1ai/indijskie-czifry-istoriya-vozniknoveniya-i-put-k-mirovomu-priznaniyu/2026-03-29T21:24:59+03:00https://xn----7sbabaabj4apryvcx3ed0u.xn--p1ai/arabskie-czifry-protiv-rimskih-pochemu-poziczionnaya-sistema-schisleniya-pobedila/2026-03-30T21:14:26+03:00https://xn----7sbabaabj4apryvcx3ed0u.xn--p1ai/czifry-v-drevnej-rusi-kak-zapisyvali-chisla-do-poyavleniya-arabskih-czifr/2026-03-30T22:16:21+03:00https://xn----7sbabaabj4apryvcx3ed0u.xn--p1ai/chto-takoe-naturalnye-chisla-svojstva-razryady-i-klassy/2026-03-31T17:51:11+03:00https://xn----7sbabaabj4apryvcx3ed0u.xn--p1ai/naturalnye-chisla-chto-oni-takoe-i-zachem-nuzhny-v-povsednevnoj-zhizni/2026-04-01T20:26:40+03:00https://xn----7sbabaabj4apryvcx3ed0u.xn--p1ai/mnozhestvo-naturalnyh-chisel-chto-ono-vklyuchaet-i-pochemu-nachinaetsya-s-ediniczy/2026-04-06T21:17:34+03:00https://xn----7sbabaabj4apryvcx3ed0u.xn--p1ai/naturalnyj-ryad-chisel-i-ego-zakonomernosti-prostye-i-sostavnye-chisla/2026-04-06T21:58:28+03:00https://xn----7sbabaabj4apryvcx3ed0u.xn--p1ai/polozhitelnye-czelye-chisla-pravila-slozheniya-vychitaniya-umnozheniya-i-deleniya/2026-04-07T07:01:40+03:00https://xn----7sbabaabj4apryvcx3ed0u.xn--p1ai/zamknutost-otnositelno-slozheniya-prakticheskie-zadachi-i-uprazhneniya/2026-04-07T07:31:40+03:00https://xn----7sbabaabj4apryvcx3ed0u.xn--p1ai/zamknutost-otnositelno-umnozheniya-v-raznyh-chislovyh-mnozhestvah-sravnenie-i-kontrprimery/2026-04-07T16:21:33+03:00https://xn----7sbabaabj4apryvcx3ed0u.xn--p1ai/kommutativnost-slozheniya-primery-iz-povsednevnoj-zhizni-i-prakticheskie-zadachi/2026-04-07T16:48:46+03:00https://xn----7sbabaabj4apryvcx3ed0u.xn--p1ai/kommutativnost-umnozheniya-kak-ispolzovat-svojstvo-dlya-bystrogo-schyota-i-uproshheniya-vyrazhenij/2026-04-07T19:22:14+03:00https://xn----7sbabaabj4apryvcx3ed0u.xn--p1ai/assocziativnost-slozheniya-i-eyo-rol-v-algebre-ot-osnov-k-slozhnym-strukturam/2026-04-07T19:47:54+03:00https://xn----7sbabaabj4apryvcx3ed0u.xn--p1ai/assocziativnost-umnozheniya-chto-eto-takoe-i-pochemu-eto-vazhno-v-matematike/2026-04-07T20:13:17+03:00https://xn----7sbabaabj4apryvcx3ed0u.xn--p1ai/prostye-naturalnye-chisla-interesnye-fakty-i-zakonomernosti/2026-04-07T20:46:18+03:00https://xn----7sbabaabj4apryvcx3ed0u.xn--p1ai/sostavnye-naturalnye-chisla-reshaem-zadachi-oge-i-ege/2026-04-09T15:26:36+03:00https://xn----7sbabaabj4apryvcx3ed0u.xn--p1ai/odnoznachnye-naturalnye-chisla-chto-eto-takoe-i-kak-ih-obyasnit-rebyonku/2026-04-15T12:57:07+03:00https://xn----7sbabaabj4apryvcx3ed0u.xn--p1ai/dvuznachnye-naturalnye-chisla-priyomy-slozheniya-i-vychitaniya-bez-oshibok/2026-04-15T12:37:18+03:00https://xn----7sbabaabj4apryvcx3ed0u.xn--p1ai/tryohznachnye-naturalnye-chisla-v-zadachah-ot-prostyh-vychislenij-do-olimpiadnyh-golovolomok/2026-04-15T12:16:07+03:00https://xn----7sbabaabj4apryvcx3ed0u.xn--p1ai/kak-napisat-kontrolnuyu-po-matematike-poshagovyj-plan-podgotovki-za-nedelyu/2026-04-15T11:43:55+03:00https://xn----7sbabaabj4apryvcx3ed0u.xn--p1ai/naturalnye-chisla-kontrolnaya-rabota-po-matematike-dlya-5-klassa-s-resheniyami-i-razborom-tipichnyh-oshibok/2026-04-12T18:28:36+03:00https://xn----7sbabaabj4apryvcx3ed0u.xn--p1ai/vse-dejstviya-s-obyknovennymi-drobyami-kontrolnaya-rabota-dlya-5-klassa-kriterii-oczenivaniya-i-shkala-ballov/2026-04-12T18:04:15+03:00https://xn----7sbabaabj4apryvcx3ed0u.xn--p1ai/geometricheskie-figury-i-ih-svojstva-kontrolnaya-rabota-po-matematike-5-klass-s-illyustracziyami-i-poyasneniyami-k-za/2026-04-19T20:15:06+03:00https://xn----7sbabaabj4apryvcx3ed0u.xn--p1ai/zadachi-na-dvizhenie-i-rabotu-kontrolnaya-po-matematike-5-klass-s-otvetami/2026-05-05T13:49:31+03:00https://xn----7sbabaabj4apryvcx3ed0u.xn--p1ai/desyatichnye-drobi-chto-eto-takoe-prostoe-obyasnenie-dlya-novichkov/2026-05-13T19:44:28+03:00https://xn----7sbabaabj4apryvcx3ed0u.xn--p1ai/desyatichnye-drobi-kak-ustroena-zapis-czelaya-i-drobnaya-chast/2026-05-13T19:31:27+03:00https://xn----7sbabaabj4apryvcx3ed0u.xn--p1ai/desyatichnye-drobi-razryady-posle-zapyatoj-desyatye-sotye-tysyachnye/2026-05-15T15:44:09+03:00https://xn----7sbabaabj4apryvcx3ed0u.xn--p1ai/desyatichnye-drobi-pravila-chteniya-chisel-vsluh/2026-05-15T20:06:21+03:00https://xn----7sbabaabj4apryvcx3ed0u.xn--p1ai/desyatichnye-drobi-chem-oni-otlichayutsya-ot-obyknovennyh/2026-05-16T16:56:02+03:00https://xn----7sbabaabj4apryvcx3ed0u.xn--p1ai/desyatichnye-drobi-kogda-poyavlyayutsya-nuli-v-koncze-i-mozhno-li-ih-ubirat/2026-05-16T21:40:15+03:00https://xn----7sbabaabj4apryvcx3ed0u.xn--p1ai/desyatichnye-drobi-kak-zapisat-czeloe-chislo-v-vide-desyatichnoj-drobi/2026-05-19T16:00:25+03:00