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2×( ÷+ )=4
×30= ÷ = + = ÷ = 0× =
3.2÷0.4= 5- = × = 1.21× = ÷2.2=
① × ×
② + × +
③( + )×1.8
④ ÷8- ×
⑤(0.75- )÷( + )
⑥26×
, , ,, ,,。
进入组卷