无
*注意事项:
×60= × = 0.36× = 15:20=
÷2= 6÷ = 0.56÷ = :0.75=
①89×
②
③
④×6.8+4.2×4.75-4.75
⑤
①6x=
②3x﹣1.2×5=9
③x÷=12
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