问题
解答题
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答案
(1)35×9×2,
=35×2×9,
=70×9,
=630;
(2)7×125×8,
=7×(125×8),
=7×1000,
=7000;
(3)32×125,
=4×8×125,
=4×98×125),
=4×1000,
=4000;
(4)25×36,
=25×(4×9),
=(25×4)×9,
=100×9,
=900.
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(1)35×9×2,
=35×2×9,
=70×9,
=630;
(2)7×125×8,
=7×(125×8),
=7×1000,
=7000;
(3)32×125,
=4×8×125,
=4×98×125),
=4×1000,
=4000;
(4)25×36,
=25×(4×9),
=(25×4)×9,
=100×9,
=900.