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用简便运算 63×25×40 17×5×20 25×125×4×8 426×101 25×44
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2017-11-16 · 知道合伙人教育行家
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展开全部
63×25×40
=63×1000
=63000.
17×5×20
=17×100
=1700.
25×125×4×8
=100×1000
=100000.
426×101
=42600+426
=43026.
25×44
=1000+100
=1100.
=63×1000
=63000.
17×5×20
=17×100
=1700.
25×125×4×8
=100×1000
=100000.
426×101
=42600+426
=43026.
25×44
=1000+100
=1100.
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展开全部
63×25×40
=25x40x63
=1000x63
=6300
17×5×20
=17x100
=1700
25×125×4×8
=(25x4)x(125x8)
=100x1000
=100000
426×101
=426x(100+1)
=426x100+426
=42600+426
=43026
25×44
=25x4x11
=100x11
=1100
=25x40x63
=1000x63
=6300
17×5×20
=17x100
=1700
25×125×4×8
=(25x4)x(125x8)
=100x1000
=100000
426×101
=426x(100+1)
=426x100+426
=42600+426
=43026
25×44
=25x4x11
=100x11
=1100
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