8.Сравни. 258 × a □ 258 × (a + 1)128 × 5 □ 128 × 4 + 128471 × 9□471 - 10 + 471582 002 :...

$258 \cdot a\,\,\boxed{?}\,\,258 \cdot (a + 1)\\258 \cdot a\,\,\boxed{?}\,\,258 \cdot a + 258\\0\,\,\boxed{?}\,\,258\\0\,\,\boxed{<}\,\,258$

$128\cdot5\,\,\boxed{?}\,\,128\cdot4+128\\128\cdot5\,\,\boxed{?}\,\,128\cdot(4+1)\\128\cdot5\,\,\boxed{?}\,\,128\cdot5\\128\cdot5\,\,\boxed{=}\,\,128\cdot5$

}\,\,471\cdot2-10" alt="471\cdot9\,\,\boxed{?}\,\,471-10+471\\471\cdot9\,\,\boxed{?}\,\,471\cdot2-10\\471\cdot9\,\,\boxed{>}\,\,471\cdot2-10" align="absmiddle" class="latex-formula">

}\,\,58\,202" alt="582\,002:2\,\,\boxed{?}\,\,58\,202:2\\582\,002\,\,\boxed{?}\,\,58\,202\\582\,002\,\,\boxed{>}\,\,58\,202" align="absmiddle" class="latex-formula">

}\,\,98" alt="5\cdot20\,\,\boxed{?}\,\,99-1\\100\,\,\boxed{?}\,\,98\\100\,\,\boxed{>}\,\,98" align="absmiddle" class="latex-formula">

}\,\,4" alt="589+4\cdot0\,\,\boxed{?}\,\,589\cdot0+4\\589+0\,\,\boxed{?}\,\,0+4\\589\,\,\boxed{?}\,\,4\\589\,\,\boxed{>}\,\,4" align="absmiddle" class="latex-formula">

$800\,000-1\,\,\boxed{?}\,\,799\,999+1\\799\,999\,\,\boxed{?}\,\,800\,000\\799\,999\,\,\boxed{<}\,\,800\,000$

$125\,004:3\,\,\boxed{?}\,\,1\,250\,040:30\\125\,004:3\,\,\boxed{?}\,\,125\,004:3\\125\,004:3\,\,\boxed{=}\,\,125\,004:3$