递等式计算．（能用简便算法的用简便方法计算）
1.5×105 2.33×0.5×4 24.6+18.7+15.4
1.2×2.5+0.8×2.5 2.05÷0.82+33.6 9.07﹣22.78÷3.4．
相关试题
递等式计算．（能用简便算法的用简便方法计算）
1.5×105 2.33×0.5×4 24.6+18.7+15.4
1.2×2.5+0.8×2.5 2.05÷0.82+33.6 9.07﹣22.78÷3.4．
+
=
= 8.7﹣4.8= 1.25×2.4=
= 1÷
=
=
×1
= 1÷7+
+
= 1.02﹣0.43=
÷25%×
=
×2÷
=
×4÷
=
×0.7=
×1
=
+
﹣
=
﹣
﹣
=（
+
）×24=
×
= 7.2÷0.8×9=
=
+
= 10﹣5.75= 7÷0.01=
×
= 1.7×5.4×0=
+
﹣1÷3）=
﹣
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