ᠳᠥᠷᠪᠡᠳᠦᠭᠡᠷ ᠣᠨ ᠤ ᠲᠤᠭᠠ 四年级数学16.pptx
 ᠪᠢᠷ ᠢᠶᠠᠷ ᠪᠤᠲᠤᠬᠤ ᠬᠤᠪᠢᠶᠠᠬᠤ ᠦᠢᠯᠡᠲᠦᠯ ᠢ ,60÷20= 90÷30= 40÷20= 62÷20 ≈ 93÷30 ≈ 42÷20 ≈,,,,,430÷62 =,6 ︵︶ ᠁ ᠁ 58 ︵︶ ,430,62,60,7,4,,430,62,6,2,7,3,,8,5,3,4,28,︶ ,1 9 7,,7,28,197,30,8,6,1,,197÷28 =,7 ︵︶ ᠁ ᠁ 1 ︵︶ ,1,6,,2 9,55,9,6,1,, ᠵᠠᠯᠠᠷᠠᠭᠤᠯ ᠨᠢ ᠪᠤᠷᠤᠭᠤ ,