人教版最新改版三年级上册数学教案.doc

1XXXX 2014-2015 XXXX12 XXXX 2014 2015 : : 1 : XXXX . -1. 2. 3. 104. 5. 11=100011=10001=606. 7. 8. 1. 2. 3. 1. 2. 3. 4. 1. 2. 3. 4. 5. 5.6.7.12346. 2014 7715 1 4 2 3 3 4 4 4 5 6 3 7 4 8 3 9 4 10 46 11 4 12 3 13 3 14 4 15 4 16 3 17 4 18 -3 19 4 20 4 21 7 1 11=602116031233111541111111111151266861011212234160111=60111218 1311240 10019 2503 112 1239 12113532069504112=11?223a60+60=120b2260602=1204241260=1101=11060=11010=1100321273074523a69315b4530=1515451521501145213334594010 3 12313243511 46158691 1= 4= 99 3625= 1502 4004 10122052501011 1 12312126+30 48+20 49-20 56+3 28-924+9 35-20 46-7 98-90 78+92( )23 28 35 6320 3 ( ) ( ) ( ) ( ) ( ) ( )72 31 75 2912 ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( )11923353435+34435+343430+435+30=6565+4=69.1353530+530+34=6464+5=69.23430+43530+530+30=604+5=960+9=6921239+44339+44A39+40=79 79+4=83B30+44=74 74+9=83C30+40=70 9+4=13 70+13=833154+21= 15+55= 61+39= 35+66= 23+28= 32+46=53+36= 37+54= 15+65= 18+26= 41+56= 13+29=2397512132 1234126+41= 19+41= 56+28= 83+12= 75+11= 75+21=67+21= 72+15= 45+24= 58+42= 57+17= 48+37=235-20= 35-2= 36-8=11124865541214 2165-34.165-50=1515-4=11265-4=6161-50=115450465504265-48.65-48, 65- = = 484086540865-40=2525-8=1765-8=5757-40=173162712315 3 12312153+6= 85-5= 67+9= 72-6=20+40+3000= 900-700+80= 300+20+60=80-60+200= 100+400+50= 900-300-200=216767254054031360 480 520 790 2102720 270 450 840 91011312380+5503138+55=93380+550=93023