一年级下册口算练习(1)88-60= 78-7= 2+26= 78-60= 29-9= 77-40= 85+3= 99-30= 29-8= 74-2= 77-50= 77-5= 60-60= 79-6= 56+3= 43+6= 22+70= 100-40= 97-30= 97-3=89-30= 99-50= 7+41= 8+50= 23+4= 96-20= 99-60= 89-40= 45+4= 66+2= 79-40= 33+3= 68-40= 88-50= 37+20= 56-40= 65+3= 99-20= 47-20= 37-20= 41+5= 22+30= 25+30= 54+40= 63+5= 30+56= 26+3= 52+7= 27+20= 53-30= 一年级下册口算练习(2)64+6= 47+4= 4+36= 59+8= 80+9= 47 + 20= 3 + 86= 29 + 3= 23 +30= 49+6=67+5= 39+50= 49+6= 76+8= 53+9= 67+30= 9+74= 44+6= 14+9= 86+10= 45 + 6= 87 + 8= 24 + 60= 5 + 66= 20+78=42+3= 45+6= 34+5= 35+40= 60+18= 61+20= 40+57= 7+31= 73+1= 4+65=50+44= 23+70= 65+10= 78+20= 2+69=35 + 9= 20 + 60= 80 + 10= 32 +50= 60+23= 36 + 8= 9 + 41= 54 + 8= 75 +7= 67-20=一年级下册口算练习(3)48-9= 47-8= 52-4= 43-8= 68-9=40-2= 27-9= 32-4= 41-2= 38-9=50-8= 63-9= 37-8= 56-20= 88-8=75-9