Question

Tính nhanh

1,27+2,77+4,27+5,77+7,27+8,77+10,27+11,77+13,27+14,77

Cố gắng lên nha

Answer 1

chịu!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!111

hehehehe

Answer 2

1,27+2,77+4,27+5,77+7,27+8,77+10,27+11,77+13,27+14,77

= (1,27 + 14,77) + (2,77 + 13,27) + (4,27 + 11,77) + (5,77 + 10,27) + (7,27 + 8,77)

= 16 + 16 + 16 + 16 + 16 = 16*5 = 80

Answer 3

401\5 nhé