竖式计算 （1）375+168= （2）709﹣425= （3）376+589（4）603﹣497= （5）436+573= （6）503﹣286=（7）272﹣157= （8）806﹣318= （9）396+454=
直接写得数．===== 75%÷25%===
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直接写出得数．+0.2=+﹣0.2= 5÷=×1.5+3= 3.6×=×1.5=﹣= 1﹣137.5%=
直接写得数﹣=÷9= 1﹣=×=÷=÷=+=×=+=÷=﹣=×=
直接写出得数．+=﹣=×2=×=×=÷4=÷= 12×=÷42=×=×14=÷4=
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+0.2=
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﹣0.2= 5÷
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= 1﹣137.5%=
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÷9= 1﹣
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×14=
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