小学一年级数学(上)5 以内的加法同步练习一、填得数。1+ 2= 3 +2 = 2+2 = 1 +2 = 3+ = + = 21 世纪教育网版权所有二、画一画,填一填。4 + 1 =5 2+2 = 2+3 = 1+ 2 = 三、看图写算式。+ = + =21 教育网(3) (4) 2+ = + 2 = 4 + = + 4 = 四、算一算。1 + 2 = 1 + 1 = 2 + 1 = 2 + 2 = 2 + 3 =1 + 4 = 3 + 2= 1 + 4 = 3 + 1 = 4 + 0 =附参考答案一、填得数。3,5,4;二、画一画,填一填。 2+2 = 4, ,2+3=5 , 1+2=3三、看图写算式。1+4 =5 ,2+3 = 5,2+1=3,1+2=3 ,4+1=5 ,1+4 = 5四、算一算。3,2,3,4,5,5,5,5,4,4.