tinh hop ly neu co the
1.12.22-6.20+3.32
2.(212.213-15:5+2018).(53.1414-14.5353)
1/4 - 1/3+ 5/12 Thuc hien cac phep tinh (tinh hop li neu co the)
Tinh hop li ( neu co the):-23.63+23.21-58.23
thuc hien phep tinh bang cach hop li neu co the 37x96-86x37+2x23x5-30+4x16x25
Tinh hop li (neu co the)
(1-1/3).(1-1/6).(1-1/10)......(1-1/190)
thuc hien phep tinh bang cach hop li neu co the 30-[50-(9-4)2]+20150
Tính hop li neu co the
b) 5/11-(3/4+5/11)
Tinh hop li neu co the
a:15,2-4,18-2,09 B; 60-26,75-13,35 C: 38,25-18,25+21,64-11,64
D:45,28+52,17-15,28-12,1