用简便方法计算。 75乘(8+4) 88乘125 125乘(80+4)72乘75 135乘17-35乘17 795-(95-425) 646-(138+146)
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发布时间:2022-04-29 16:12
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热心网友
时间:2023-10-18 12:58
75×﹙8+4﹚
=75×8﹢75×4
=600﹢300
=900
88×125
=11×﹙8×125﹚
=11×1000
=11000
125×(80+4)
=125×80﹢125×4
=10000﹢500
=10500
72×75
=9×﹙8×75﹚
=9×600
=5400
135×17-35×17
=﹙135-35﹚×17
=100×17
=1700
795-(95-425)
=795-95+425
=700+425
=1125
646-(138+146)
=646-146-138
=500-138
=362
99×15
=90×15+9×15
=1350+135
=1485
102×23
=100×23+2×23
=2300+46
=2346
39×4×125
=39×﹙4×125﹚
=39×500
=19500
75×19×8
=75×8×19
=600×19
=11400
热心网友
时间:2023-10-18 12:58
25*4=100
75*(8+4)=25*3*(4+4+4)=300*3=900
8*125=1000
88*125=1000*11=11000
125*4=500
125*(80+4)=125*8*10+125*4=10000+500=10500
72*75=18*4*3*25=18*3*100=5400
135*17-35*17=(135-35)*17=1700
795-(95-425)=795-95+425=1125
646-(138+146)=646-146-138=500-138=362
99*15=100*15-15=1500-15=1485
102*23=100*23-2*23=2300-46=2254
39*4*125=39*500=39*5*100=19500
75*19*8=25*3*19*4*2=100*3*19*2=38*3*100=11400
热心网友
时间:2023-10-18 12:59
75乘8+75乘4=600+300=900 80乘125+1乘125=10000+125=10125
125乘80+125乘4=1000+500=1500 或
75×﹙8+4﹚
=75×8﹢75×4
=600﹢300
=900
88×125
=11×﹙8×125﹚
=11×1000
=11000
125×(80+4)
=125×80﹢125×4
=10000﹢500
=10500
72×75
=9×﹙8×75﹚
=9×600
=5400
135×17-35×17
=﹙135-35﹚×17
=100×17
=1700
795-(95-425)
=795-95+425
=700+425
=1125
646-(138+146)
=646-146-138
=500-138
=362
99×15
=90×15+9×15
=1350+135
=1485
102×23
=100×23+2×23
=2300+46
=2346
39×4×125
=39×﹙4×125﹚
=39×500
=19500
75×19×8
=75×8×19
=600×19
=11400
热心网友
时间:2023-10-18 12:59
75乘8+75乘4=600+300=900 80乘125+1乘125=10000+125=10125
125乘80+125乘4=1000+500=1500
热心网友
时间:2023-10-18 12:58
75×﹙8+4﹚
=75×8﹢75×4
=600﹢300
=900
88×125
=11×﹙8×125﹚
=11×1000
=11000
125×(80+4)
=125×80﹢125×4
=10000﹢500
=10500
72×75
=9×﹙8×75﹚
=9×600
=5400
135×17-35×17
=﹙135-35﹚×17
=100×17
=1700
795-(95-425)
=795-95+425
=700+425
=1125
646-(138+146)
=646-146-138
=500-138
=362
99×15
=90×15+9×15
=1350+135
=1485
102×23
=100×23+2×23
=2300+46
=2346
39×4×125
=39×﹙4×125﹚
=39×500
=19500
75×19×8
=75×8×19
=600×19
=11400
热心网友
时间:2023-10-18 12:58
25*4=100
75*(8+4)=25*3*(4+4+4)=300*3=900
8*125=1000
88*125=1000*11=11000
125*4=500
125*(80+4)=125*8*10+125*4=10000+500=10500
72*75=18*4*3*25=18*3*100=5400
135*17-35*17=(135-35)*17=1700
795-(95-425)=795-95+425=1125
646-(138+146)=646-146-138=500-138=362
99*15=100*15-15=1500-15=1485
102*23=100*23-2*23=2300-46=2254
39*4*125=39*500=39*5*100=19500
75*19*8=25*3*19*4*2=100*3*19*2=38*3*100=11400
热心网友
时间:2023-10-18 12:58
75×﹙8+4﹚
=75×8﹢75×4
=600﹢300
=900
88×125
=11×﹙8×125﹚
=11×1000
=11000
125×(80+4)
=125×80﹢125×4
=10000﹢500
=10500
72×75
=9×﹙8×75﹚
=9×600
=5400
135×17-35×17
=﹙135-35﹚×17
=100×17
=1700
795-(95-425)
=795-95+425
=700+425
=1125
646-(138+146)
=646-146-138
=500-138
=362
99×15
=90×15+9×15
=1350+135
=1485
102×23
=100×23+2×23
=2300+46
=2346
39×4×125
=39×﹙4×125﹚
=39×500
=19500
75×19×8
=75×8×19
=600×19
=11400
热心网友
时间:2023-10-18 12:58
25*4=100
75*(8+4)=25*3*(4+4+4)=300*3=900
8*125=1000
88*125=1000*11=11000
125*4=500
125*(80+4)=125*8*10+125*4=10000+500=10500
72*75=18*4*3*25=18*3*100=5400
135*17-35*17=(135-35)*17=1700
795-(95-425)=795-95+425=1125
646-(138+146)=646-146-138=500-138=362
99*15=100*15-15=1500-15=1485
102*23=100*23-2*23=2300-46=2254
39*4*125=39*500=39*5*100=19500
75*19*8=25*3*19*4*2=100*3*19*2=38*3*100=11400
热心网友
时间:2023-10-18 12:59
75乘8+75乘4=600+300=900 80乘125+1乘125=10000+125=10125
125乘80+125乘4=1000+500=1500 或
75×﹙8+4﹚
=75×8﹢75×4
=600﹢300
=900
88×125
=11×﹙8×125﹚
=11×1000
=11000
125×(80+4)
=125×80﹢125×4
=10000﹢500
=10500
72×75
=9×﹙8×75﹚
=9×600
=5400
135×17-35×17
=﹙135-35﹚×17
=100×17
=1700
795-(95-425)
=795-95+425
=700+425
=1125
646-(138+146)
=646-146-138
=500-138
=362
99×15
=90×15+9×15
=1350+135
=1485
102×23
=100×23+2×23
=2300+46
=2346
39×4×125
=39×﹙4×125﹚
=39×500
=19500
75×19×8
=75×8×19
=600×19
=11400
热心网友
时间:2023-10-18 12:59
75乘8+75乘4=600+300=900 80乘125+1乘125=10000+125=10125
125乘80+125乘4=1000+500=1500 或
75×﹙8+4﹚
=75×8﹢75×4
=600﹢300
=900
88×125
=11×﹙8×125﹚
=11×1000
=11000
125×(80+4)
=125×80﹢125×4
=10000﹢500
=10500
72×75
=9×﹙8×75﹚
=9×600
=5400
135×17-35×17
=﹙135-35﹚×17
=100×17
=1700
795-(95-425)
=795-95+425
=700+425
=1125
646-(138+146)
=646-146-138
=500-138
=362
99×15
=90×15+9×15
=1350+135
=1485
102×23
=100×23+2×23
=2300+46
=2346
39×4×125
=39×﹙4×125﹚
=39×500
=19500
75×19×8
=75×8×19
=600×19
=11400
热心网友
时间:2023-10-18 12:59
75乘8+75乘4=600+300=900 80乘125+1乘125=10000+125=10125
125乘80+125乘4=1000+500=1500
热心网友
时间:2023-10-18 12:59
75乘8+75乘4=600+300=900 80乘125+1乘125=10000+125=10125
125乘80+125乘4=1000+500=1500
热心网友
时间:2023-10-18 12:58
75×﹙8+4﹚
=75×8﹢75×4
=600﹢300
=900
88×125
=11×﹙8×125﹚
=11×1000
=11000
125×(80+4)
=125×80﹢125×4
=10000﹢500
=10500
72×75
=9×﹙8×75﹚
=9×600
=5400
135×17-35×17
=﹙135-35﹚×17
=100×17
=1700
795-(95-425)
=795-95+425
=700+425
=1125
646-(138+146)
=646-146-138
=500-138
=362
99×15
=90×15+9×15
=1350+135
=1485
102×23
=100×23+2×23
=2300+46
=2346
39×4×125
=39×﹙4×125﹚
=39×500
=19500
75×19×8
=75×8×19
=600×19
=11400
热心网友
时间:2023-10-18 12:58
75×﹙8+4﹚
=75×8﹢75×4
=600﹢300
=900
88×125
=11×﹙8×125﹚
=11×1000
=11000
125×(80+4)
=125×80﹢125×4
=10000﹢500
=10500
72×75
=9×﹙8×75﹚
=9×600
=5400
135×17-35×17
=﹙135-35﹚×17
=100×17
=1700
795-(95-425)
=795-95+425
=700+425
=1125
646-(138+146)
=646-146-138
=500-138
=362
99×15
=90×15+9×15
=1350+135
=1485
102×23
=100×23+2×23
=2300+46
=2346
39×4×125
=39×﹙4×125﹚
=39×500
=19500
75×19×8
=75×8×19
=600×19
=11400
热心网友
时间:2023-10-18 12:58
25*4=100
75*(8+4)=25*3*(4+4+4)=300*3=900
8*125=1000
88*125=1000*11=11000
125*4=500
125*(80+4)=125*8*10+125*4=10000+500=10500
72*75=18*4*3*25=18*3*100=5400
135*17-35*17=(135-35)*17=1700
795-(95-425)=795-95+425=1125
646-(138+146)=646-146-138=500-138=362
99*15=100*15-15=1500-15=1485
102*23=100*23-2*23=2300-46=2254
39*4*125=39*500=39*5*100=19500
75*19*8=25*3*19*4*2=100*3*19*2=38*3*100=11400
热心网友
时间:2023-10-18 12:59
75乘8+75乘4=600+300=900 80乘125+1乘125=10000+125=10125
125乘80+125乘4=1000+500=1500 或
75×﹙8+4﹚
=75×8﹢75×4
=600﹢300
=900
88×125
=11×﹙8×125﹚
=11×1000
=11000
125×(80+4)
=125×80﹢125×4
=10000﹢500
=10500
72×75
=9×﹙8×75﹚
=9×600
=5400
135×17-35×17
=﹙135-35﹚×17
=100×17
=1700
795-(95-425)
=795-95+425
=700+425
=1125
646-(138+146)
=646-146-138
=500-138
=362
99×15
=90×15+9×15
=1350+135
=1485
102×23
=100×23+2×23
=2300+46
=2346
39×4×125
=39×﹙4×125﹚
=39×500
=19500
75×19×8
=75×8×19
=600×19
=11400
热心网友
时间:2023-10-18 12:59
75乘8+75乘4=600+300=900 80乘125+1乘125=10000+125=10125
125乘80+125乘4=1000+500=1500
热心网友
时间:2023-10-18 12:58
25*4=100
75*(8+4)=25*3*(4+4+4)=300*3=900
8*125=1000
88*125=1000*11=11000
125*4=500
125*(80+4)=125*8*10+125*4=10000+500=10500
72*75=18*4*3*25=18*3*100=5400
135*17-35*17=(135-35)*17=1700
795-(95-425)=795-95+425=1125
646-(138+146)=646-146-138=500-138=362
99*15=100*15-15=1500-15=1485
102*23=100*23-2*23=2300-46=2254
39*4*125=39*500=39*5*100=19500
75*19*8=25*3*19*4*2=100*3*19*2=38*3*100=11400
热心网友
时间:2023-10-18 12:59
75乘8+75乘4=600+300=900 80乘125+1乘125=10000+125=10125
125乘80+125乘4=1000+500=1500 或
75×﹙8+4﹚
=75×8﹢75×4
=600﹢300
=900
88×125
=11×﹙8×125﹚
=11×1000
=11000
125×(80+4)
=125×80﹢125×4
=10000﹢500
=10500
72×75
=9×﹙8×75﹚
=9×600
=5400
135×17-35×17
=﹙135-35﹚×17
=100×17
=1700
795-(95-425)
=795-95+425
=700+425
=1125
646-(138+146)
=646-146-138
=500-138
=362
99×15
=90×15+9×15
=1350+135
=1485
102×23
=100×23+2×23
=2300+46
=2346
39×4×125
=39×﹙4×125﹚
=39×500
=19500
75×19×8
=75×8×19
=600×19
=11400
热心网友
时间:2023-10-18 12:59
75乘8+75乘4=600+300=900 80乘125+1乘125=10000+125=10125
125乘80+125乘4=1000+500=1500