无
*注意事项:
45÷ = ×16= × = 0÷ = ×6÷ =
÷ = 5÷ = ×75%= × = + × =
① ÷4×
②1- ÷ -
③ × - ÷
④12×( + )
⑤ ÷( + )
⑥ ×1.25×51×8
1608× =804(小时)
1608+804=2412(小时)
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