一块的菜地种植了4种蔬菜，分布情况如图．（1）若黄瓜的种植面积是420m2，则西红柿和芹菜的种植面积各是多少平方米？（2）求芹菜比油菜的种植面积少百分之几？
直接写得数．×16= 12÷= 24×=×÷= 1÷=÷15=÷=×÷×=
直接写得数． 10÷=÷=×= 55×÷=×2= 1÷=÷= 0×+=
口算我最棒= 26×======= 6.4÷20%= 125%×8=
直接写出得数．×= 1÷=÷60%=×15=﹣= 4.5+=×= 6.8÷10%=
直接写得数 24×= 72×= 12÷=÷3= 0÷=3÷=×=﹣×0=
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×16= 12÷
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