20×9= ． 40÷60= 
80× =320
×50=350 180÷ =90 60× =480
320÷ =80 ÷50=7 45÷ =5
23×3= 69210÷3= 7040× =160
×30=180 ×5=300 ÷9=9
8× =640．
20×9= ． 40÷60= 80× =320
×50=350 180÷ =90 60× =480
320÷ =80 ÷50=7 45÷ =5
23×3= 69210÷3= 7040× =160
×30=180 ×5=300 ÷9=9
8× =640．
，方框中最大填 可以使商是两位数．
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