125*32*25 300-123+75-77 75+360-20+48 16*7+16*82+16 125*39*8*2 280*36+28*64 怎么简算不能的不用
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![125*32*25 300-123+75-77 75+360-20+48 16*7+16*82+16 125*39*8*2 280*36+28*64 怎么简算不能的不用](/uploads/image/z/105176-56-6.jpg?t=125%2A32%2A25+300-123%2B75-77+75%2B360-20%2B48+16%2A7%2B16%2A82%2B16+125%2A39%2A8%2A2+280%2A36%2B28%2A64+%E6%80%8E%E4%B9%88%E7%AE%80%E7%AE%97%E4%B8%8D%E8%83%BD%E7%9A%84%E4%B8%8D%E7%94%A8)
125*32*25 300-123+75-77 75+360-20+48 16*7+16*82+16 125*39*8*2 280*36+28*64 怎么简算不能的不用
125*32*25 300-123+75-77 75+360-20+48 16*7+16*82+16 125*39*8*2 280*36+28*64 怎么简算不能的不用
125*32*25 300-123+75-77 75+360-20+48 16*7+16*82+16 125*39*8*2 280*36+28*64 怎么简算不能的不用
125*32*25
=125*8*4*25
=1000*100
=100000
300-123+75-77
=300+75-77 -123
=375-(77+123)
=375-200
=175
75+360-20+48
=75+360-20+25+23
=75+25+360-20+23
=100+360+3
=463
16*7+16*82+16
=16*(7+82+1)
=16*90
=16*(100-10)
=16*100-16*10
=1600-160
=1440
125*39*8*2
=125*8*39*2
=1000*78
=78000
280*36+28*64
=10080+1792
=11872
125*32*25
=125×8×4×25
=1000×100
=100000
300-123+75-77
=300+75-(123+77)
=375-200
=175
75+360-20+48
=70+5+340+40+8
=450+13
=463
16*7+16*82+16
=16×...
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125*32*25
=125×8×4×25
=1000×100
=100000
300-123+75-77
=300+75-(123+77)
=375-200
=175
75+360-20+48
=70+5+340+40+8
=450+13
=463
16*7+16*82+16
=16×(7+82+1)
=16×90
=16×(100-10)
=1600-160
=1440
125*39*8*2
=125×8×39×2
=1000×78
=78000
280*36+28*64 ????题目有点问题
是不是:
28*36+28*64
=28×(36+64)
=28×100
=2800
或者:
280*36+280*64
=280×(36+64)
=280×100
=28000
收起
125*32*25
=125*8*4*25
=1000*100
=100000
300-123+75-77
=300+75-(123+77)
=375-200
=175
75+360-20+48
=75+360+(48-20)
=435+28
=463
16*7+16*82+16
=16...
全部展开
125*32*25
=125*8*4*25
=1000*100
=100000
300-123+75-77
=300+75-(123+77)
=375-200
=175
75+360-20+48
=75+360+(48-20)
=435+28
=463
16*7+16*82+16
=16*(7+82+1)
=16*90
=1440
125*39*8*2
=125*8*39*2
=1000*78
=78000
280*3.6+28*64
=28*36+28*64
=28*(36+64)
=28*100
=2800
收起
125×32×25=125×8×4×25=1000×100=100000
300-123+75-77=300-(123+77)+75=300-200+75=175
75+360-20+48=75-20+48+360=55+48+360=103+360=463
16×7+16×82+16=16×(7+82+1)=16×90=1440
125×39×8×2=125×8×39×2=1000×78=78000
28×36+28×64=28×(36+64)=28×100=2800