Toán Lớp 6: 1 + 2 – 3 – 4 + 5 + 6 -7 – 8 + 9 + 10 + 11 – 12 – … – 299 – 300 + 301 + 302
Leave a reply
Register Now
Login
Lost Password
Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
Toán Lớp 6: 1 + 2 – 3 – 4 + 5 + 6 -7 – 8 + 9 + 10 + 11 – 12 – … – 299 – 300 + 301 + 302
Comments ( 2 )
=1+(2−3−4+5)+(6−7−8+9)+(10−11−12+13)+…−(298−299−300+301)+302
=1+0+0+0+…+302
=1+302
=303