递等式计算（能简便的用简便计算）
①21.7+1.8×3﹣22.5÷1.5 ②35.6÷0.25÷4
③7.43×8+8×1.57+8 ④（1.4+1.4+1.4+1.4）×2.5．
相关试题
×8.5+
×7.5）÷15．
×60+8÷2
12×（
+
﹣
）4
﹣（1
+1
）
×〔
﹣（
+
）〕4×12.5×
÷
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×
36×
+65×25%﹣1÷4
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1743+2.56﹣743+7.44．用你喜欢的方法计算．
0.125×32×2.5 6.7×0.9+3.3×0.9（
﹣
+
）÷
18.7×98+18.7+18.7 0.65×14+87×65%﹣
．
递等式计算（能简便的用简便计算）
①21.7+1.8×3﹣22.5÷1.5 ②35.6÷0.25÷4
③7.43×8+8×1.57+8 ④（1.4+1.4+1.4+1.4）×2.5．
用你喜欢的方法计算．
0.125×32×2.5 6.7×0.9+3.3×0.9（﹣+）÷
18.7×98+18.7+18.7 0.65×14+87×65%﹣．
=1.9×2×0.5=
=
=
=0.9÷99×0.9=
=
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