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Soat va minutlar bilan hisoblash
Darslik: 2-qism, 71-dars, 64–65-betlar
MaqsadSoat va minutlar bilan hisoblash: 60 minutni o‘tkazish va olish.
Yangi so‘zlar
soat · hourminut · minutetanaffus · breakkechikish · being late
Tushuntirish
Qo‘shishda minutlar 60 yoki undan ko‘p bo‘lsa, 60 minutni 1 soatga almashtiramiz: 1 soat 50 minut + 2 soat 40 minut = 3 soat 90 minut = 4 soat 30 minut. Ayirishda minut yetmasa, 1 soatni 60 minutga almashtiramiz: 7 soat 20 minut − 3 soat 50 minut = 6 soat 80 minut − 3 soat 50 minut = 3 soat 30 minut.
Namunalar
2 soat 15 minut + 3 soat 45 minut = 5 soat 60 minut = 6 soat.
16 soat − 13 soat 40 minut = 15 soat 60 minut − 13 soat 40 minut = 2 soat 20 minut.
Sinfda faoliyat
«Vaqt hisobchilari»: kun tartibi: uyg‘onish 7:00, maktab 8:30, mashg‘ulot 15:45. Juftliklar tadbirlar orasidagi vaqtni hisoblab, javobni «… soat … minut» deb aytadi.
Mashq
1
1 soat 50 minut + 2 soat 40 minut = ?
4 soat 30 minut
2
6 soat 20 minut − 3 soat 30 minut = ?
2 soat 50 minut
3
Hozir 15:45. Mashg‘ulot 17:20 da boshlanadi. Necha vaqt bor?
1 soat 35 minut
4
Lola 25 minut idish yig‘ishtirdi va 37 minut yo‘lda bo‘ldi. Jami necha minut?
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