matematika 2 klass trudnaya tema

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soderjanie predislovie . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 den perviy. povtoryaem ustnie priyomi slojeniya i vichitaniya chisel v predelax 100 vida 60 ± 20, 35 ± 3, 35 ± 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 den vtoroy. povtoryaem ustnie priyomi slojeniya i vichitaniya chisel v predelax 100 vida 35 ± 6, 42 ± 8 . . . . 9 den tretiy. povtoryaem …

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atematike za 2-y klass, predlagaem vam etu knigu. v zanyatii kajdogo dnya vi naydyote: — chetire rubriki: «vspomni!» (zdes predstavlen teoreticheskiy material po teme dannogo zanyatiya), «prover sebya» (eto kontrolnoe zadanie), «otseni svoyu rabotu» i «zadanie dlya smekalistix»; — razlichnie zadaniya, pomogayushie osvoit neob- xodimie umeniya i naviki; — obraztsi rassujdeniy. otveti na zadaniya, pomeshyonnie v rubrikax «pro- ver sebya» i «zadanie dlya smekalistix», privedeni v kontse knigi. jelaem uspexa! 4 d e n p e r v i y povtoryaem ustnie priyomi slojeniya i vichitaniya chisel v predelax 100 vida 60 ± 20, 35 ± 3, 35 ± 10 vspomni!  desyatki skladivayutsya (vichitayutsya) tak je, kak edinitsi.  pri slojenii chisel edinitsi skladivayutsya s edi- nitsami, a desyatki — s desyatkami.  pri vichitanii iz edinits vichitayut edinitsi, a iz desyatkov — desyatki. obraztsi rassujdeniy 1. 60 + 20 = ? 6 des. + 2 des. = 8 …

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50 24 + 40 = 64 41 + 7 = 48 prover sebya reshi primeri. a) 70 + 20 = 46 + 3 = 72 – 30 = b) 80 – 60 = 86 – 5 = 86 + 10 = v) 100 – 40 = 94 + 4 = 94 – 50 = g) 20 + 50 = 38 – 7 = 61 – 50 = d) 30 + 70 = 41 + 6 = 38 + 40 = otseni svoyu rabotu (raskras znachok) — vipolnil vsyo pravilno i samostoyatelno. — nashyol oshibki i ispravil ix samostoyatelno. — nashyol oshibki i ispravil ix s pomoshyu vzroslix. zadanie dlya smekalistix  n aydi i podcherkni lishniy primer. a) 38 – 4 43 + 6 92 – 40 51 + 5 b) 90 – 60 35 + 30 42 – 10 64 + 20 9 d e n v t o …

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bolshe 6 na 28. 7. podcherkni primeri, u kotorix otveti okanchiva- yutsya tsifroy 7. 29 + 8 63 + 7 55 + 9 44 – 6 82 – 5 36 – 9 prover sebya reshi primeri. a) 38 + 2 = 71 – 4 = 54 + 9 = b) 74 + 9 = 35 – 7 = 54 – 9 = v) 68 + 7 = 83 – 8 = 72 + 3 = g) 43 + 9 = 27 – 9 = 92 – 5 = d) 84 + 6 = 46 – 7 = 37 + 7 = otseni svoyu rabotu (raskras znachok) — vipolnil vsyo pravilno i samostoyatelno. — nashyol oshibki i ispravil ix samostoyatelno. — nashyol oshibki i ispravil ix s pomoshyu vzroslix. zadanie dlya smekalistix  vpishi v «okoshki» znaki «+» ili «–» tak, chtobi rezultati vichisleniy bili vernimi. a) 47 8 4 = …

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vichitayu desyatki: bilo 10 desyatkov, stalo 9. 9 minus 3 budet 6. pishu 6 pod desyatkami.  chitayu otvet: 63. zadaniya 1. zapishi primeri v stolbik i reshi ix. 52 + 36 68 – 65 39 + 32 74 – 66 44 + 56 95 – 48 100 – 36 100 – 58 •10 10 – 17 2. vichisli. 78 54 96 38 89 46 35 43 62 39 36 92 57 80 100 56 47 29 43 52 3. vpishi v «okoshko» znak «+», esli slojenie vipol- neno verno, i znak «–», esli ono vipolneno neverno. 43 24 28 63 57 12 75 14 37 23 55 98 32 100 70 4. vpishi v «okoshko» znak «+», esli vichitanie vipol- neno verno, i znak «–», esli ono vipolneno neverno. 64 79 90 100 71 36 54 43 32 58 28 25 57 68 23 5. vpishi v «okoshko» takie …

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soderjanie predislovie . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 den perviy. povtoryaem ustnie priyomi slojeniya i vichitaniya chisel v predelax 100 vida 60 ± 20, 35 ± 3, 35 ± 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . …

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