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b)(8.7+100:25): (75-75:5)
i) 1+9+[4 (4+5)-6+7.81-9}
j) 18{110-10-[9.8-9(15-8)]}
k) 119+5:{27+3.[210-202-2.(57-2.23
}
)​

Răspuns :

Andreutsa10ask

b)(56+4):(75-15)=

60:60=1

i)10+(4+9-6+567-9)=

10+565=575

j) 18[100-(72-9×7)]=

18[100-(72-63)]=

18(100-9)=

18×91=1638

k)119+5:{27+3×[8-2×(57-46)]}=

119+5:[27+3×(8-2×11)]=

119+5:[27+3×(-14)]=

119+5:(27-42)=

119+5:(-15)=

119-3=116

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