无
*注意事项:
1.25×8= 0.25×16= + × = × + × =
5- = 72.09+9= - + = 0.45×99+0.45=
①7.25- +3.75-
②
③0.65×6.4-6.5×0.54+65×9%
④
⑤
⑥
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