=107 - { 38 + [ 7× 9 -24 ÷ 6 + 23 ] } ÷ 15
= 107 - { 38 + [ 63 - 4 + 8 ] } ÷15
= 107 - { 38 +67 } ÷15
=107 - 105÷15
=107-7 = 100
107 - { 38 + [ 7 x 32 - 24 : 6 + ( 9 - 7 )3 ] } : 15
107-{38-[7x3^2-24:6+(9-7)^3]}:15
107-{38+[7.3^2-24:6+(9-7)^3]}:15
TÍNH GIÚP MÌNH NHA:
107-{38+(7*32-24/6+9-7)3]}/15
107-{38+[7.32-24:6+(9-7)3 ]}:15
B2=107-{38+[7.32-24:6+(9-7)3]}:15
k) 2345 – 1000 : [19 – 2(21 – 18)2 ] l) 128 – [68 + 8(37 – 35)2 ] : 4
m) 568 – {5[143 – (4 – 1)2 ] + 10} : 10
n) 107 – {38 + [7.32 – 24 : 6+(9 – 7)3 ]}:15
o) 307 – [(180 – 160) : 22 + 9] : 2
p) 205 – [1200 – (42 – 2.3)3 ] : 40
q) 177 :[2.(42 – 9) + 32 (15 – 10)]
r) [(25 – 2 2 .3) + (32 .4 + 16)]: 5
s) 125(28 + 72) – 25(32 .4 + 64)
giúp mk
a) 52.2 – 32.4 b) 58.75 + 58.50 – 58.25
c) 107 – {38 + [7.32 – 24 : 6 + (9 – 7)3]}:15 d) (-23) + 13 + ( - 17) + 57
a) 52.2 – 32.4 b) 58.75 + 58.50 – 58.25
c) 107 – {38 + [7.32 – 24 : 6 + (9 – 7)3]}:15 d) (-23) + 13 + ( - 17) + 57
