67+198= 200×0.24= 51.6÷6= 100﹣27.69=×
=
÷
=
+
= 5﹣
=
0÷÷
= 1÷
×
= 9×
÷9×
= 40%﹣
=
直接写得数.+
= ; 2.5÷
= ; 7.2÷9= ;
×6×
÷6= ;
3.5﹣0.35= ;﹣
= ; 266+199= ;(
+0.55)×0= .
直接写得数
2.6+7.4= 36+99= 0.008×1000= 70÷0.01=
110﹣87= 2.5÷1/4= 7/12×9/14= 4/5×0.25+3=
直接写得数
2.5÷=
×
=
×0.25+3=
×
=
2.8×0.5= 6+7.4= 80÷0.01=+
+
=
直接写出得数
0.9×99+0.9= 100÷25×8= 9×= 8÷
=
1﹣66.9%== 0÷
=
=
14×102= 7.2÷9=