问题 解答题 口算. 800÷4=300÷6=40×21=320÷8=60×30=44÷4=82÷2=36÷3= 答案 800÷4=200,300÷6=50,40×21=840,320÷8=40,60×30=1800,44÷4=11,82÷2=41,36÷3=12.故答案为:200,50,840,40,1800,11,41,12.