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----- Nội dung ảnh -----
Bài 1: Thực hiện phép tính.
a) 27.75 + 25.27 – 150
c) 375:
32−[4+(52−42)] – 14
) 500 - \{ 5 \left[ 409 - (2 \cdot 3 - 21)^2 \right] - 1724 \}
b) 142 - \left[ 50 - (2^3 \cdot 10^{-2.5}) \right]
d) \{ 210: [16 + 3 \cdot (6 + 3 \cdot 2^2)] \} - 3
f) \left( 10^2 + 11^2 + 12^2 \right) \cdot \left( 13^2 + 14^2 \right)