20以内口算幻灯片.ppt

1,13-5=,2,12-3=,3,11-2=,4,14-5=,5,18-9=,6,9+2=,7,11-3=,8,9+6=,9,9+5=,10,14-7=,11,17-8=,12,8+3=,13,7+7=,14,14-8=,15,13-8=,16,8+4=,17,13-9=,18,5+9=,19,15-6=,20,8+6=,21,11-8=,22,9+7=,23,9+3=,24,13-6=,25,6+7=,26,14-9=,27,7-5=,28,12-6=,29,16-7=,30,7-6=,31,6-2=,32,16-8=,33,7+8=,34,8+8=,35,6-4=,36,15-7=,37,3+9=,38,9+8=,39,12-5=,40,5+7=,41,5+9=,42,7+9=,43,15-8=,44,4+9=,45,13-4=,46,8+9=,47,5+8=,48,12-4=,49,6+8=,50,11-4=,51,3+9=,52,11-5=,53,7+6=,54,12-8=,55,8-8=,56,7-3=,57,5+8=,58,4+7=,59,3+8=,60,4+8=,61,6+8=,62,5+7=,63,9+9=,64,7+8=,65,6+8=,66,2+9=,67,7+7=,68,6+6=,69,4+9=,70,9+8=,71,6+6=,72,11-6=,73,7+8=,74,12-9=,75,8+8=,76,15-9=,77,7+8=,78,12-9=,79,7+9=,80,14-6=,81,8+9=,82,13-7=,83,5+6=,84,11-9=,85,7-7=,86,11-6=,87,8-6=,88,11-7=,89,9-8=,90,4-2=,91,9-1=,92,5-2=,93,3+9=,94,9+2=,95,8+8=,96,6+9=,97,9+6=,98,7+5=,99,4+9=,100,4+8=,101,5+9=,102,6+5=,103,12-8=,104,8-8=,105,7-3=,106,7+6=,107,8-8=,108,5+8=,109,3+8=,110,4+8=,111,5+7=,112,6+8=,113,9+9=,114,7+8=,115,2+9=,116,6+8=,117,6+6=,118,7+7=,119,4+9=,120,9+8=,121,11-6=,122,6+6=,123,12-9=,124,7+8=,125,8+8=,126,15-9=,127,7+9=,128,14-6=,129,8+9=,130,13-7=,131,11-9=,132,5+6=,133,11-6=,134,7-7=,135,3+8=,136,4+8=,137,5+7=,138,6+8=,139,9+9=,140,7+8=,141,2+9=,142,6+8=,143,7+7=,144,6+6=,145,9+8=,146,4+9=,147,11-6=,148,6+6=,149,7+8=,150,12-9=,151,8+8=,152,15-9=,153,7+9=,154,14-6=,155,8+9=,156,13-7=,157,5+6=,158,11-9=,159,7-7=,160,11-6=,161,8-6=,162,11-7=,163,8+8=,164,6+9=,165,4-2=,166,9-8=,167,3+9=,168,9+2=,169,5-2=,170,9-1=,171,9+6=,172,7+5=,173,4+8=,174,4+9=,175,6+5=,176,5+9=,177,11-2=,178,11-3=,179,12-3=,180,13-5=,181,9+2=,182,14-5=,183,9+6=,184,18-9=,185,14-7=,186,9+5=,187,8+3=,188,17-8=,189,7+7=,190,13-8=,191,8+4=,192,14-8=,193,5+9=,194,13-9=,195,8+6=,196,15-6=,197,11-8=,198,9+7=,199,13-6=,200,9+3=,201,4月4日3分钟66题4月5日3分钟70题4月6日3分钟73题4月8日3分钟