简算(数学)(1)63*18+37*18(2)25*7*4(3)88*125(4)199*71+71(5)188+63+
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简算(数学)
(1)63*18+37*18
(2)25*7*4
(3)88*125
(4)199*71+71
(5)188+63+12+37
(6)201*34
比如:201*34
=(200+1)*34
=200*34+1*34
=6800+34
=6834
乘法=*
(1)63*18+37*18
(2)25*7*4
(3)88*125
(4)199*71+71
(5)188+63+12+37
(6)201*34
比如:201*34
=(200+1)*34
=200*34+1*34
=6800+34
=6834
乘法=*
![简算(数学)(1)63*18+37*18(2)25*7*4(3)88*125(4)199*71+71(5)188+63+](/uploads/image/z/3465280-64-0.jpg?t=%E7%AE%80%E7%AE%97%EF%BC%88%E6%95%B0%E5%AD%A6%EF%BC%89%EF%BC%881%EF%BC%8963%2A18%2B37%2A18%EF%BC%882%EF%BC%8925%2A7%2A4%EF%BC%883%EF%BC%8988%2A125%EF%BC%884%EF%BC%89199%2A71%2B71%EF%BC%885%EF%BC%89188%2B63%2B)
(1)63*18+37*18
=18×(63+37)
=18×100
=1800
(2)25*7*4
=25×4×7
=100×7
=700
(3)88*125
=11×8×125
=11×(8×125)
=11×1000
=11000
(4)199*71+71
=(199+1)×77
=200×71
=14200
(5)188+63+12+37
=(188+12)+(63+37)
=200+100
=300
(6)201*34
=(200+1)*34
=200*34+1*34
=6800+34
=6834
=18×(63+37)
=18×100
=1800
(2)25*7*4
=25×4×7
=100×7
=700
(3)88*125
=11×8×125
=11×(8×125)
=11×1000
=11000
(4)199*71+71
=(199+1)×77
=200×71
=14200
(5)188+63+12+37
=(188+12)+(63+37)
=200+100
=300
(6)201*34
=(200+1)*34
=200*34+1*34
=6800+34
=6834