学校北墙前要栽月季花，全长300米，每隔5米种一株，两头不能种花。共能栽多少株月季花？
直接写得数．3×= 1÷= ÷= +=0÷= ×= ÷= 6×=
×4= ×= += ×= ×=÷= 0÷= ×= 0×10= ×=+= ﹣= 0÷= ÷= ×4=3×1= += ﹣= 1÷（﹣）= 4÷×4=
直接写出得数．= 16×50%= 16÷= = ÷3== 4÷1%= 2+1÷= 7+= 1÷=
直接写出得数．8×= ÷= ×÷×=3.6×= 15π= 80×（1﹣60%）=
直接写出得数．21×= 1÷= ÷= 8×=÷= += 5﹣= ×=
= 1÷
= 
÷
= 
+
=
= 
×
= 
= 6×
=
×4= 
×
= 
+
= 
×
×
=
÷
= 0÷
×
= 0×10= 
×
=
+
= 
﹣
= 0÷
= 
÷
= 
×4=
1= 
= 
﹣
= 1÷（
﹣
）= 4÷
×4=
= 16×50%= 16÷
= 
= 
÷3=
= 4÷1%= 2+1÷
= 7+
= 1÷
=
= 
÷
= 
×
÷
×
= 15π= 80×（1﹣60%）=
= 1÷
= 
÷
= 8×
=
÷
= 
+
= 5﹣
= 
×
=
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