计算345345÷15015．
直接写得数 2×3.14×8=== 25%+= （1﹣）×（﹣）== 1.75﹣（0.75+）= 3.14×9=
口算． 0.48÷0.3= 18×1%= 2.5×40= 1﹣=÷=
1.25÷2.5= 36×（+）= 9÷9= 5×÷×5= 8﹣8÷9=÷7=
直接写出得数． 3.2÷0.01=×=÷= 5.6+3.99= 10×= 4××=÷= 6.4×0.5=
口算． 0.9×0.4= 31.4+6= 0.64÷4=﹣=÷=×=﹣=÷4=++= 1﹣﹣=
=
= 25%+
=
）×（
﹣
）=
= 1.75﹣（0.75+
）= 3.14×9=
=
÷
=
+
）= 9
÷9=
÷
÷7=
×
=
÷
= 5.6+3.99=
= 4×
×
=
÷
= 6.4×0.5=
﹣
=
÷
=
×
=
﹣
=
÷4=
+
+
= 1
﹣
﹣
=
粤公网安备 44130202000953号