The answers to the second volume of the fourth grade mathematics supporting exercise book published by People's Education Press
4. A row of 77.77 million reads 77.77 million, 70.777 million reads 70.777 million, 70.777 million reads 70.707 million, 70.777 million reads 70.777 million, 70.777 million reads 70.777 million, 70.777 million reads 70.707 million, 70.777 million reads 70.7777 million. Divided by 10 and multiplied by 1.4 equals 140 kg 7, and the winner is; Li Ning. The runner-up is Xiao Qiang. The third runner-up is Zhang Hai.