Toán Lớp 6: thực hiện phép tính
a) 53 + (34 +4) . 2 + (27 – 3) : 4
b) 621 – {[(117 + 3) : 5] – 32}
c) 97 . 52 + 97 . 47 + 97
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Toán Lớp 6: thực hiện phép tính
a) 53 + (34 +4) . 2 + (27 – 3) : 4
b) 621 – {[(117 + 3) : 5] – 32}
c) 97 . 52 + 97 . 47 + 97
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