用竖式计算． 58+37= 94﹣35= 48+32﹣16= 94﹣34﹣35=
= = = == 0×1.27= = == = = 1.5÷25%+1.5=
口算：× 45× ÷10 0÷ 54×÷ ×64 12÷ （﹣）×24 3×÷3×．
直接写出得数×= 1﹣= ÷1= ÷=×= 2.5×= ×= 52×=×÷×= 0÷5×=
直接写得数．= 24÷= = == ﹣= = ﹣×=
直接写出得数：3﹣1.2= （0.1）3= 3÷1= ×0.4=﹣= ×7= +1= 5×÷5×=+×= 21÷3=
= 
= 
= 
=
= 0×1.27= 
= 
=
= 
= 
= 1.5÷25%+1.5=
×
45×
÷10 0÷
54×
÷
×64 12÷
（
﹣
）×24 3×
÷3×
×
= 1﹣
= 
÷1= 
÷
=
×
= 2.5×
= 
×
= 52×
=
×
÷
×
= 0÷5×
=
= 24÷
= 
= 
=
= 
﹣
= 
= 
=
﹣1.2= （0.1）3= 3÷1
= 
×0.4=
﹣
= 
×7= 
+1
= 5×
÷5×
+
×
= 21
÷3=
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