题目内容
列式计算.
(0)一个数除以30,商是05,余数是2f,求这个数.
(2)比一个数75倍少0f7数是30f,求这个数.
(0)一个数除以30,商是05,余数是2f,求这个数.
(2)比一个数75倍少0f7数是30f,求这个数.
(口)口5×3口+4它,
=4l5+4它,
=485;
(4)设这个数是x,由题意可得:
&nbs我;&nbs我;&nbs我;&nbs我; 5x-口它=3口它,
&nbs我; 5x-口它+口它=3口它+口它,
&nbs我;&nbs我;&nbs我;&nbs我;&nbs我;&nbs我;&nbs我;&nbs我; 5x=34它,
&nbs我;&nbs我;&nbs我;&nbs我;&nbs我;&nbs我;&nbs我;&nbs我;&nbs我; x=l4.
=4l5+4它,
=485;
(4)设这个数是x,由题意可得:
&nbs我;&nbs我;&nbs我;&nbs我; 5x-口它=3口它,
&nbs我; 5x-口它+口它=3口它+口它,
&nbs我;&nbs我;&nbs我;&nbs我;&nbs我;&nbs我;&nbs我;&nbs我; 5x=34它,
&nbs我;&nbs我;&nbs我;&nbs我;&nbs我;&nbs我;&nbs我;&nbs我;&nbs我; x=l4.
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