题文
计算:
①4050﹣6030÷ =3900
②3×6+33×66+333×666=
③1﹣
+
﹣
+
﹣
=
④方程:10.1﹣17X=1.86﹣15解是X=
⑤1÷(2÷3)÷(3÷4)÷(4÷5)÷…÷(19÷20)=
⑥3
×(3
+
)+3.4×
=
计算:
①4050﹣6030÷ =3900
②3×6+33×66+333×666=
③1﹣
+
﹣
+
﹣
=
④方程:10.1﹣17X=1.86﹣15解是X=
⑤1÷(2÷3)÷(3÷4)÷(4÷5)÷…÷(19÷20)=
⑥3
×(3
+
)+3.4×
=
试题篮
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