Contact us
Choose a category below so we can get back to you as quickly as possible.
2.56+1/9-1.56+8/9 =2.56-1.56+(1/9+8/9) =1+1 =2 120/(60%-40%)=600 600+120=720(個)
We and our partners use cookies and other technologies to analyze traffic and optimize your experience. View more info and control your cookies settings at any time in our Cookies Policy.