在图中用颜色表示对应的分数．
直接写得数 24÷=﹣= 10+2.52=（﹣0.5）×=×=（+）×12=×÷×= 0.32×200=
计算下面各题．====+=====
口算：========
看图填空．
（1）红色+绿色=+= （2）黄色+黑色=+= （3）红色﹣黄色=﹣= （4）你还能提出什么数学问题？能解答吗？
直接写出得数．========
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﹣
= 10+2.52=（
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×
=（
+
）×12=
÷
×
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+
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