Question

tính nhanh

\(\frac{\left(456.11+912\right).37}{13.74}\)

\(\frac{864.48-432.96}{864.48.432}\)

\(\frac{16.17-5}{16.16+11}\)

\(\frac{45.16-17}{28+45.15}\)

\(\frac{7256.4375-725}{3650+4375.7255}\)

Answer 1

\(\frac{\left(456.11+912\right).37}{13.74}\)

\(=\frac{\left(456.11+456.2\right).37}{13.37.2}\)

\(=\frac{[456.\left(11+2\right).37}{13.37.2}\)

\(=\frac{456.13}{13.2}\)

\(=\frac{456}{2}=228\)