4-sinf uchun matematika fanidan nazorat ishlari.1-variant1.Misol.Hisoblash.460*500= 36075:37=395*207= 44380:7=2.Misol.Berilgan o`lchov birliklarida ifodalash.5707kg=___t___kg 1900q=____t5t344kg=____kg 60000kg=___t3.Tenglamani yechish.27200-y=15127+4361 487-(234+117):x=4484.MasalaBirinchi dastgoh bir soatda 17ta detalga,ikkinchi dastgoh esa undan 3ta ko`p detalga ishlov beradi.Ular birgalikda 12soatda nechta detalga ishlov beradi?