横线上最大能填几?_____×3<10 30>5×_____ ...
横线上最大能填几?
_____×3<10 30>5×_____ 20>_____×6
_____×5<24 16>3×_____ 15>_____×4.
解;(1)因3×3=9,3×4=12,故最大填3,
(2)因5×5=25,5×6=30,故最大填5,
(3)因3×6=18,3×7=21,故最大填3,
(4)因4×5=20,5×5=25,故最大填4,
(5)因3×5=15,3×6=18,故最大填5,
(6)因3×4=12,4×4=16,故最大填3,
故答案为:3,5,3,4,5,3.
问:横线上最大能填几?40×______<225; 340>80×______
答:225÷40=5…25340÷80=4…20则40×5<225; 340>80×4.故答案为:5,4.详情>>
答:详情>>