脱式计算(能简算的要简算)
①1812+(240-480÷15)===②672÷56+12×99===③4.98×99===急急急!!!!大家快点吧,谢谢啊~...
①1812+(240-480÷15)
=
=
=
②672÷56+12×99
=
=
=
③4.98×99
=
=
=
急急急!!!!大家快点吧,谢谢啊~ 展开
=
=
=
②672÷56+12×99
=
=
=
③4.98×99
=
=
=
急急急!!!!大家快点吧,谢谢啊~ 展开
1个回答
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