...72×125= 3200÷4÷25= 18×23-23×7-23= 283-73-37= 350÷_百度知...
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发布时间:2024-10-22 20:52
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时间:2024-10-23 00:52
①125×25×16,
=125×25×8×2,
=(125×8)×(25×2),
=50000;
②72×125,
=(8×9)×125,
=(8×125)×9,
=9000;
③3200÷4÷25,
=3200÷(4×25),
=32;
④18×23-23×7-23,
=23×(18-7-1),
=230;
⑤283-73-37,
=283-(73+37),
=173;
⑥350÷14,
=350÷(7×2),
=350÷7÷2,
=25.