直接写出得数．+= ﹣= ﹣= +=1﹣= += ﹣= ﹣=6﹣= += ﹣1= 2+=
直接写出得数+=+=﹣0.125=﹣=+0.3= 10﹣=×=×=×= 10×=
口算：﹣=+=×= 25×10%=
直接写得数．﹣= 3+1=×6= 7.43﹣1.4﹣2.6= 1÷= 5.1+0.3= 0÷（﹣）= 25×4= 5.4÷0.3=
直接写得数 2﹣=×= 20%÷=×30%= 3.5+1.5= 0.5×=
直接写出得数+= 1÷0.25= 3.14×8= 6.3×= 2.4÷=×= 80×40%= 21÷=﹣×5=×18×=
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﹣
﹣
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﹣1= 2+
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﹣0.125=
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+0.3=
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= 10×
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= 25×10%=
﹣
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×6= 7.43﹣1.4﹣2.6= 1÷
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﹣
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×
= 20%÷
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×30%= 3.5+1.5= 0.5×
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= 2.4÷
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×
= 80×40%= 21÷
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﹣
×5=
×18×
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