4.7+9.69-5.46
=14.39-5.46
=8.93
520-3000÷75x6
=520-40x6
=520-240
=280
(1470+530)÷50
=2000÷50
=40
=14.39-5.46
=8.93
520-3000÷75x6
=520-40x6
=520-240
=280
(1470+530)÷50
=2000÷50
=40
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