5以内的加法,1,2,4,1,5,4,1,2,3,2,2,3,1,4,1,4,3,3,5,4,2,1,5,想一想,2,1,把2和1合起来了,认识符号,+,=,加号,等号,2,3,1,2,1,3,加,等于,学习新知,把3和1合起来了,把两个数合起来用加法,计算,认识符号,+,=,加号,等号,4,3,1,4,1,3,加,等于,3,认识符号,+,=,加号,等号,2,3,1,2,1,3,加,等于,读作:3加2等于5。,4,+,1,=,5,4,1,1,3,4,2,2,4,1,3,4,先画一画,再填得数。,5,2,5,3 + 1 = 4,1 + 3 = 4,2 + 2 = 4,2 + 3 = ( ),5,先画一画,再填得数。,5,2,5,( )+( )=( )( )+( )=( ),( )+( )=( )( )+( )=( ),再见,