用递等式计算，能简算的要简算．
78×10.1 （78.6﹣18.6÷0.31）×1.5
6.2×66.7+66.7×4.8﹣66.7 （5.9+5.9+5.9+5.9）×0.25．
相关试题
用递等式计算，能简算的要简算．
78×10.1 （78.6﹣18.6÷0.31）×1.5
6.2×66.7+66.7×4.8﹣66.7 （5.9+5.9+5.9+5.9）×0.25．
+
= 10﹣
=
=
×
=
÷0.8=
×3÷
÷
= 0.125+
= 3×
=
+
×4=
﹣
= 1﹣75%=
÷0.01= 0÷
+
÷6= 3÷0.9= 13.5÷9=
=
= 40.5﹣0.05= 2÷10%=
×
= 6900÷30=
÷3= 10÷
=
÷
=
×
=
÷
=
×
= 1﹣
=
×60=
×
=
×
×
×
÷5= 30÷
=
÷
=
÷
=
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