Bài 1: Fill in the blank with the suitable sign ( > ; < ; = ) ;
compare : 7,12 : 0,5 + 8, 23 ....... 28,48 : 2 + 4,12 : 0,5
Bài 2 : If 144 / 17 < n < 169 / 34 : 13 / 68 and n is a natural number then n = .....
Bài 3 Divide 77 into three pats so that one is 150 % of each of the other two . The smaller number is ...
( Giải chi tiết nhé. Trả lời nhanh , đúng cho 3 like )