a, 2x3x4x8x25x125= (2x3)x(4x25)x(8x125)= 6x100x1000=600000
b,42/5 +56/9+23/4+3/5+1/3+1/4= (42/5+3/5)+(23/4+1/4)+(56/9+1/3)=9+6+59/9=
a) 2 x 3 x 4 x 8 x 25 x 125=600000
b) 4 2/5 + 5 6/9 + 2 3/4 + 3/5 + 1/3 + 1/4=14
a) 2 x 3 x 4 x 8 x 25 x 125
=(2x3)x(4x25)x(8x125)
=6x100x1000
=600000
b) 4 2/5 + 5 6/9 + 2 3/4 + 3/5 + 1/3 + 1/4
(4+\(\frac{2}{5}\)+\(\frac{3}{5}\))+(5+\(\frac{6}{9}\)+1/3)+(2+\(\frac{3}{4}\)+\(\frac{1}{4}\))
=(4+1)+(5+1)+(2+1)
=5+6+3
=14
\(a,2\times3\times4\times8\times25\times125\)
\(=\left(2\times25\right)\times\left(4\times125\right)\times\left(3\times8\right)\)
\(=50\times500\times24\)
\(=25000\times24\)
\(=600000\)
\(b,\frac{42}{5}+\frac{56}{9}+\frac{23}{4}+\frac{3}{5}+\frac{1}{3}+\frac{1}{4}\)
\(=\left(\frac{42}{5}+\frac{3}{5}\right)+\left(\frac{23}{4}+\frac{1}{4}\right)+\left(\frac{56}{9}+\frac{1}{3}\right)\)
\(=9+6+\frac{59}{9}\)
\(=\frac{194}{9}\)
