4-sinf. matematika. tenglamalar 333

mavzu: tenglamalar mustaqil topshiriqni tekshirish (43-b). 6-misol. 80 + 630 : 9 · (10 + 990) = 2 700 : (4 + 5) + (240 – 90) = 70 70 000 1 000 70 080 70 080 9 150 300 450 450 mustaqil topshiriqni tekshirish (43-b). 7-masala. masalalarni tenglama tuzib yeching: 1) agar 184 soni noma’lum songa kamaytirilsa,125 hosil bo‘ladi. shu noma’lum sonni toping. 2) agar noma’lum son 184 ga kamaytirilsa, 125 hosil bo‘ladi. shu noma’lum sonni toping. 184 – x = 125 x – 184 = 125 x = 184 - 125 x = 59 184 – 59 = 125 125 = 125 x = 184 + 125 x = 309 309 – 184 = 125 125 = 125 …

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