题目内容
4得得÷z25
=(4得得得×o)÷(z25×o)
=
=
z4得÷9得
=(z4得÷z得)÷(9得÷z得)
=
=
=(4得得得×o)÷(z25×o)
=
=
z4得÷9得
=(z4得÷z得)÷(9得÷z得)
=
=
400÷129
=(4000×8)÷(129×8)
=32000÷1000
=32;
140÷70
=(140÷10)÷(70÷10)
=14÷7
=2.
=(4000×8)÷(129×8)
=32000÷1000
=32;
140÷70
=(140÷10)÷(70÷10)
=14÷7
=2.
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