沪教版二年级数学上册,用乘法口诀求商,学习目标:1. 使同学们进一步熟悉乘法口诀。2. 能够熟练运用乘法口诀求商。,84= 62= 34= 89=46= 25=,32,12,12,72,24,10,口答,填空。5( )=20 9( )=36 2( )=14 4( )=28( )3=12 ( )3=27,4,4,7,7,4,9,看图说意思。,34=,124=,123=,你会算吗?,408=,648=,5,8,(五)八四十,八(八)六十四,255,182,88,306,639,91,648,427,5,9,1,5,7,9,8,6,54=205=204=,20,4,5,四五二十,63=18 56=30183= 305=186= 306=,6,3,6,5,三六十八,五六三十,二七十四,27=1472=14142=7147=2,四四十六,44=16164=4,猜猜我是谁?,9个“我”加起来是27,“我”是( )。,