（苏州）计算下面各题，能简算的要简算． ①630÷18×24 ②0.7+3.9+4.3+6.1 ③16×+4× ④（7.5﹣7.5×0.6）÷4 ⑤（+÷3）× ⑥．
93.6÷[(54.8+45.2)×0.06]
0.8+0.55+1.2-0.45
+-
1--
口算。+=-=+=-+= 0.63×1000= 0. 75-0.25= 0.07+0.03= 0. 9÷0.03= 0.4×0.8=
+4×
+
÷3）×
⑥
．+4×+÷3）× ⑥．
+
-
-
+
=
-
=
=
-
+
=
粤公网安备 44130202000953号