授课人：孙彰猛,10,7,1,10,9,10,2,7,10,8,7,8,3+2=5,看图列算式,8-3=5,4+2+1=7,6,8-3-1=4,8,5,4+3+1=8,7,10-3-5=2,7,2+3=5,1.,2+3=5,5+4=9,2+3+4=9,1.,2.,3+4+2=9,7,3.,8-4-2=2,4,4.,10-3-1=6,7,比一比,看谁算得又对又快,3+4+1=,8-5-3=,7+2+1=,2+2+4=,6+4+0=,4+3+2=,5+0+3=,5-2-1=,9-5-4=,10-2-7=,10-6-2=,8-0-6=,8,0,10,2,8,0,10,1,9,2,8,2,.,.,填上数，使横行、 竖行的三个数相加 都得9.,1,3,2,4,5,10,0,8,2,1,9,10,6,9,3,
