问题
解答题
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答案
(1)2×19×5,
=2×5×19,
=10×19,
=190;
(2)360÷8÷5,
=360÷(8×5),
=360÷40,
=9;
(3)10000÷8÷125,
=10000÷(8×125),
=10000÷1000,
=10;
(4)8.01×23,
=(8+0.01)×23,
=8×23+0.01×23,
=184+0.23,
=184.23;
(5)1.25×3.2×2.5,
=1.25×(0.4×8))×2.5,
=(1.25×8)×(0.4×2.5),
=10×1,
=10;
(6)2.28÷0.125,
=2.28÷0.125÷8×8,
=2.28÷(0.125×8)×8,
=2.28÷1×8,
=18.24.