Contact us
Choose a category below so we can get back to you as quickly as possible.
①-9÷3+(1/2-2/3)×12+3²; =-3-2+9 =4 ②(-3)×(-2)-(-1)的99次幂÷1/2 =6+1*2 =8
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.