的加减法练习课.ppt
10的加减法的练习课,中 小,1.看图写算式。,5,4,9,+,=,4,5,9,+,=,9,5,4,-,=,9,4,5,-,=,2.说图意,填算式。,10,2,8,-,10,10,6,4,+,8,9,7,4,5,8,6,1,5,7,4,0,10,4.口算。,9,8,5,0,6,3,9,7,2,6,9,5,3,3,10,10,10,10,10,10,7,8,8,5,4,6,3,2,10,7.丰收了。,(1)收割机和汽车一共有多少辆?,3+2=5,(2)口头提出问题,写出算式。,