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Bài 1
1 4/5 kg = 9/5 (kg)
Số gạo chứa trong bao:
9/5 : 9/10 = 2 (kg)
Số gạo lấy ra 4/5 bao:
2 × 4/5 = 1,6 (kg)
Bài 2
Ta có:
0,9 < 1 < 2 < 3 < 4 < 5 < 6 < 6,9
Vậy x = 1; x = 2; x = 3; x = 4; x = 5; x = 6