Question

Answer 1

a)\(1000\div125\cdot35\)

=\(8\cdot35\)

\(=280\)

b)\(234\cdot2+169\div3\)

\(=468+\dfrac{196}{3}\)

\(=\dfrac{1600}{3}\)

c)\(10^2\cdot3^2+5^3\)

\(=900+125\)

\(=1025\)

d)\(12^4\div12^3-7^3\div7\)

\(=12-49\)

\(=\left(-37\right)\)

e)\(\left(21+19\right)^4\div40^26+31-1600\)

\(=40^4\div40^2+31-1600\)

\(=40^2+31-1600\)

\(=1600-1600+31\)

\(=31\)

Answer 2

đề câu f sao lạ vậy 2345 hay 2545 vậy ???