两位数加减一位数进退位ppt课件

两位数加一位数（进位）两位数加一位数（进位）138+=407+8=9+3=6+8=44+=5055+=6082+=9025+3=23+10=4+12=20+5=20+16=38+=407+8=9+3=6+8=44+2百位十位个位69个一加个一加4个一。个一。3 910个一是个一是1个十。个十。7百位十位个位69个一加4个一。3910个一是1个十。73两位数加减一位数进退位ppt课件4两位数加减一位数进退位ppt课件5十十个个27+5=7+5=12十个27+5=7+5=126十十个个27+5=7+5=12 20+12=32十个27+5=20+12=327十十个个27+5=7+5=1232 20+12=32 十个27+5=32 20+12=32 827 +527 +5927 +5+3+230 32 27 +5+3+230 32 10253027403520+3+227+5=27+3=3030+2=323232323 253027403520+3+227+5=27+3=303116034404348 505530+6+3+2+534+9=34+6=4040+3=434348+7=48+2=5050+5=55556 3256034404348505530+6+3+2+534+9=31238+7=29+5=251438+2=4040+5=4545348+7=1530+15=4529+1=3030+4=349+5=1420+14=3438+7=29+5=251438+2=4040+5=45451323+8=16+5=6+29=35+7=26+6=3121354232你你们们真真聪聪明明23+8=16+5=6+29=35+7=26+6=312131428+3=19+7=312614+5=51+2=19533 2 28+3=312614+5=19533 2 15265 31348 4242951672 6948+4=521+27=2836+5=4118+4=2233+8=4115+9=2446+3=4928+6=3418+7=256+26=3235+4=3963+8=7169+3=7235+7=4247+6=5325+4=2916+2=189+44=5318+7=2539+6=45265313484242951672694816两位数加减一位数进退位ppt课件17百位十位个位57个一减个一减9个一。个一。71个十是个十是10个一。个一。4857-9=4854百位十位个位57个一减9个一。71个十是10个一。4857-1857 -94048 17857 -94048 1781957 -94748 10157 -94748 1012023-8=45-6=153928-6=59-4=22551 2 23-8=153928-6=22551 2 2125-6 1934-8 2642-9 3367-2 6544-7=3791-5=8636-5=3151-4=4733-8=2572-7=6543-4=3926-7=1943-7=3665-9=5654-5=4963-7=5663-6=5735-7=2874-6=6825-4=2136+7=439+47=5367-8=5936-9=2725-61934-82642-93367-2654422两位数加减一位数进退位ppt课件23