一根长1.6m的长方体木材平均截成3段，表面积增加了1.2㎡，原来这根长方体木材的体积是多少？
直接写出得数． 50%+6=×= 4÷0.5= 28×25%= 95%+5=+= 6.9÷23= 100×0.4=
直接写出得数====+=== 1÷===
直接写出得数．×16= 10÷= 12÷=×=×=÷3=×=×=
6×=+=×= 3﹣=÷= 1÷=÷=﹣=×14=÷12=
直接写出得数．== 71.83÷8≈ 5.04×9.85≈=== 0.53=
×
= 4÷0.5= 28×25%=
+
= 6.9÷23= 100×0.4=
=
=
=
=
+
=
=
= 1÷
=
=
=
×16= 10÷
= 12÷
=
×
=
×
=
÷3=
×
=
×
=
=
+
=
×
= 3﹣
=
÷
=
=
÷
=
﹣
=
×14=
÷12=
=
= 71.83÷8≈ 5.04×9.85≈
=
=
= 0.53=
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