题目内容
怎样简便就怎样算;
| 168-52-48 | 125×88 | 1300÷25÷4 |
| 688-534+112 | 8×(29×l25) | 156×l0l-156. |
(1)168-52-48,
=168-(52+48),
=168-100,
=68;
(2)125×88,
=125×(8×11),
=(125×8)×11,
=1000×11,
=11000;
(3)1300÷25÷4,
=1300÷(25×4),
=1300÷100,
=13;
(4)688-534+112,
=154+112,
=266;
(5)8×(29×l25),
=9×(8×125),
=9×1000,
=9000;
(6)156×l0l-156,
=156×(l0l-1),
=156×100,
=15600.
=168-(52+48),
=168-100,
=68;
(2)125×88,
=125×(8×11),
=(125×8)×11,
=1000×11,
=11000;
(3)1300÷25÷4,
=1300÷(25×4),
=1300÷100,
=13;
(4)688-534+112,
=154+112,
=266;
(5)8×(29×l25),
=9×(8×125),
=9×1000,
=9000;
(6)156×l0l-156,
=156×(l0l-1),
=156×100,
=15600.
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