+
= 15÷1%=
+0.5﹣
= 1﹣0.32=相关试题
脱式计算，写出主要计算过程，能用简便算法的要用简便算法．
①12×
÷
②
+
×9 ③14÷（
+
）×
④3.6﹣2.8+16.4﹣7.2 ⑤77×
+23×0.8．
+
=
×10%= 3.6÷12= 80%×80%=
×4÷
+
﹣
2998×9
×
+
÷
．直接写出得数．
126+299=
0.09+1.9=
+
=
0.6﹣0.06=
9+99+999+3=
1000﹣99=
8﹣
﹣3.5=
764×0.01=
33×
=
0.01÷0.2=
脱式计算，写出主要计算过程，能用简便算法的要用简便算法．
①12×÷ ②+×9 ③14÷（+）×
④3.6﹣2.8+16.4﹣7.2 ⑤77×+23×0.8．
直接写出得数．
126+299=
0.09+1.9=+=
0.6﹣0.06=
9+99+999+3=
1000﹣99=
8﹣﹣3.5=
764×0.01=
33×=
0.01÷0.2=
+
= 0.3﹣0.03=
= 0.01÷0.2=
×
=
﹣
= 7.2÷9=
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