要數學練習 要多D 多多多多多多多多多!!!!!!!!!!!!!!!!!!!!!!!!(10分 好急 快!!!)

http://www.ccpass.edu.hk/~tc02/third.html

123456+123456=246912 (-1)+4=+3 4+(+3)=+7 (-4)+6=+2 3+(-5)=-2 6+(-4)=+2 (-2)+(-2)=-4 4+(+28)=32 -17+(+21)=4 -37+(+8)=-29 8+(-12)=-4 23+(-19)=4 -10+(-37)=47 (+8)+(-5)+(-24)+(-21)=-21 (+4)-(-6)-(+17)=-7 -3-(19.3)+0.5=16.8 x-8=14 x=14+8=22 b+9=15 b=15-9=6

http://ktlms.mysch.net/~maths//menu.htm

364+264=628

628*628=394384

2.46*1.022222=2.51466612

321456789+123456789=44913578