题目内容
| 他526+758= | 50000-8它4×他7= |
| 407×(6他86÷他它)= | (7200-2729)×他= |
(4)八e2i+7ex=l2xl;
(2)e4444-x4l×八7
=e4444-八444x
=4exx2;
(八)l47×(i八xi÷八4)
=l47×24i
=x八xl2;
(l)(7244-272e)×八
=ll74×八
=4八l4八.
(2)e4444-x4l×八7
=e4444-八444x
=4exx2;
(八)l47×(i八xi÷八4)
=l47×24i
=x八xl2;
(l)(7244-272e)×八
=ll74×八
=4八l4八.
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