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a fost răspuns

efectuati:
a)55+55:55-55=
b)3×7+42:2-42+5=
c)16:4-1+729:27+3030:30=
d) (2+7×4):(120-5×21)+13×11=
e) {[9×6-14+8×3]:4+9}×10-[(3+27)-30]=

Răspuns :

55+55:55-55=55+1-55 =1 b) 3×7+42:2-42+5=42-42+5=5
05REBEKA
a)55+55÷55-55=55+1-55=56-55=1 b)3×7+42÷2-42+5=21+21-42+5=42-42+5=6 c)16÷4-1+729÷27+3030÷30=4-1+27+101=3+128=131 d)(2+7×4)÷(120-5×21)+13×11=(2+28)÷(120-105)+143=30÷15+143=2+143=145 e) {[9×6-14+8×3]÷4+9}×10-[(3+27)-30]=[(54-14+24)÷4+9]×10-(30-30)=(40+24÷4+9)×10=40+6+9×10=40+6+90=136

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