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脱式计算下列各小题,写出计算步骤.(1)63×39+39×37(2)73×(46+54)-568.
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脱式计算下列各小题,写出计算步骤. (1)63×39+39×37 (2)73×(46+54)-568. |
(1)63×39+39×37
(2)73×(46+54)-568.
(1)63×39+39×37
(2)73×(46+54)-568.
(1)63×39+39×37
(2)73×(46+54)-568.
(1)63×39+39×37
(2)73×(46+54)-568.
▼优质解答
答案和解析
(1)63×39+39×37
=(63+37)×39,
=100×39,
=3900;
(2)73×(46+54)-568,
=73×100-568,
=7300-568,
=6732. (1)63×39+39×37
=(63+37)×39,
=100×39,
=3900;
(2)73×(46+54)-568,
=73×100-568,
=7300-568,
=6732. (1)63×39+39×37
=(63+37)×39,
=100×39,
=3900;
(2)73×(46+54)-568,
=73×100-568,
=7300-568,
=6732. (1)63×39+39×37
=(63+37)×39,
=100×39,
=3900;
(2)73×(46+54)-568,
=73×100-568,
=7300-568,
=6732.
(1)63×39+39×37 =(63+37)×39, =100×39, =3900; (2)73×(46+54)-568, =73×100-568, =7300-568, =6732. |
=(63+37)×39,
=100×39,
=3900;
(2)73×(46+54)-568,
=73×100-568,
=7300-568,
=6732.
=(63+37)×39,
=100×39,
=3900;
(2)73×(46+54)-568,
=73×100-568,
=7300-568,
=6732.
=(63+37)×39,
=100×39,
=3900;
(2)73×(46+54)-568,
=73×100-568,
=7300-568,
=6732.
=(63+37)×39,
=100×39,
=3900;
(2)73×(46+54)-568,
=73×100-568,
=7300-568,
=6732.
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