问题补充说明:40
1/6x3/8-3/8÷6
=1/6x3/8-3/8x1/6
=1/6x(3/8-3/8)
=1/6x0
=0
4/7×5/9+3/7×5/9
=(4/7+3/7)x5/9
=1x5/9
=5/9
5/2-(3/2+4/5)
=5/2-3/2-4/5
=1-4/来自5
=1/5
6×(1/2+2/3)
=6x1/2+6x2/3
=3+4
=7
8×4/5+8×11/5
=8x(4/5+11/5)
=8x3
=24
31×5/6–5/6
=(31-1)x5/6
=30360问答x5/6
=25
4/5×25/16+2/3×3/4
=5/4+1/每备风等汽低已击周副室2
=5/4+2/4
=7/4
101×1/5–1/明5×21
=(101-21)x1/5
=号标规感要维气80x1/5
=16
4800÷25÷4
=4800÷(25x4)
=4800÷100
=4800÷100
=48
0.92x15+0.08x15
=(0.92+0地么思许素损齐孙呢三布.08)×15
=1×15
=15
0.72×1.25×2.5
=0.9×(0.8×1.25)×2.5
=0.9紧派矛问件随×1×2.5
=2.25
60×(1/12+1/15+1/4)
=比致护拿属业60×1/12+60×1/15+60×1/4
=5+4+15
=24
(5/12-3/8)×72
=5/12×72-3/8×72
=30-27
=3
6/7-5/24÷7/12
=6/7-5/24×12/7
=12/14-5/14
=7/14
=1/2
[3/4×(7/16-便听乡外叶虽1/4)]÷9/13
=3/4×(7/16-4/16)×13/9
=1/4×3/16×13/3
=13沿范如许/64
2/3-7/8+1/3
=(2/3+1/3)-7/8
=1-7/8
=能降1/8
5/6-(3/7-1/6)
=(白垂和声细映业井5/6+1/6)-3/7
=1-3/7
=4/7
1-1/3-2/3
=1-(1/3+2/3)
=1-1
=0
1+3/5-1势轴/10
=1+6/10-1/10
=1+1/2
=1又1/2
3/8-12/13+5/8
=3马初呼利短别/8+5/8-12/13
=1-12/13
=1/13
1-(1/2-3/4)
=1+3/4-2/4
=1+1/4
=5/4
1-1/2-1/4
=1/2-1/4
=2/4-1/4
=1/4
2/7-8/9+5/7
=准了程月挥功(2/7+5/7)-8/9
=1-8/9
=1/9
2-1/4-3/4
=2-(1/4+3/4)
=2-1
=1
1/2-(3/8-1/2喜群照块整互)
=1/2+1/2-3/4
=1-3/8
=5/8
7×25/26
=7x(1-1/26)
=7x1-7x1/26
=7-7/26
=6又19/26
18又9/10×1/9
=岩坐离(18+9/10)x1展配数歌青为/9
=18x1/9+9/10x1/9
即数卫良到板点仍=2+1/10
=2又1/10
21又1/19×1/20
=(20+20/19)x1/20
=20x1/20+20/19x1/20
=1+1/19
=1又1/19
(25+2又5/21)×21/26
=(26+26/21)x21/26
=26x21/26+26/21x21/26
=21+1
=22
6/11×3/7+4/11×6/7
=6/11x3/7+6/11x4/7
=6/11x(3/7+4/7)
=6/11x1
=6/11
2.64×1.7-2.64×0.7
=2.64×(1.7-0.7)
=2.64×1
=2.64
31.5×1.07-3.15×0.7
=3.15×10.7-3.15×0.7
=3.15×(10.7-0.7)
=3.15×10
=31.5
2.7×5.7-2.7+5.3×2.7
=2.7×(5.7-1+5.3)
=2.7×10
=27
0.625÷0.125×0.8
=(0.625×0.8)×8÷(0.125×8)
=0.5×8÷1
=4
18.6×6.1+3.9×18.6
=18.6×(6.1+3.9)
=18.6×10
=186
52.5x2.9+5.45
=5.25x29+5.25+0.2
=5.25×(29+1)+0.2
=5.25×30+0.2
=157.5+0.3
=157.7
0.92x15+0.08x15
=(0.92+0.08)×15
=1×15
=15
0.72×1.25×2.5
=0.9×(0.8×1.25)×2.5
=0.9×1×2.5
=2.25
400.6x7-2003x0.4
=200.3x14-200.3x4
=200.3×(14-4)
=200.3×10
=2003
300÷125÷8
=300÷(125×8)
=300÷1000
=0.3
396-96-172-28
=(396-96)-(172+28)
=300-200
=100
125x24
=125x8x3
=1000x3
=3000
26x15
=(20+6)x15
=20x15+6x15
=300+90
=390
25x99x4
=25x4x99
=100x99
=9900
250x32
=250x4x8
=1000x8
=8000
(98+98+98+98)x25
=4x98x25
=4x25x98
=100x98
=9800
3/4÷5/8×3/10
=3/4×8/5×3/10
=9/5×1/5
=9/25
1.25×(8+10)
=1.25×8+1.25×10
=10+12.5
=22.5
1.24+0.78+8.76
=(1.24+8.76)+0.78
=10+0.78
=10.78
1/2-(4/5-1/2)
=1/2+1/2-4/5
=1-4/5
=1/5
2/5-(3/8-3/5)
=2/5+3/5-3/8
=1-3/8
=5/8
3/4-(3/7-1/4)
=3/4+1/4-3/7
=1-3/7
=4/7
3.2x0.125x2.5
=0.125x8x(0.4x2.5)
=1x1
=1
0.4×125×25×0.8
=(0.4×25)×(125×0.8)
=10×100
=1000
1.25×(8+10)
=1.25×8+1.25×10
=10+12.5
=22.5
9123-(123+8.8)
=9123-123-8.8
=9000-8.8
=8991.2
1.24×8.3+8.3×1.76
=8.3×(1.24+1.76)
=8.3×3
=24.9
9999×1001
=9999×(1000+1)
=9999×1000+9999×1
=10008999
14.8×6.3-6.3×6.5+8.3×3.7
=(14.8-6.5)×6.3+8.3×3.7
=8.3×6.3+8.3×3.7
=8.3×(6.3+3.7)
=8.3×10
=83
1.24+0.78+8.76
=(1.24+8.76)+0.78
=10+0.78
=10.78
933-157-43
=933-(157+43)
=933-200
=733
4821-998
=4821-1000+2
=3823
32×125×25
=4×8×125×25
=(4×25)×(8×125)
=100×1000
=100000
1.8+18÷1.5-0.5×0.3
=1.8+12-0.15
=13.8-0.15
=13.65
6.5×8+3.5×8-47
=52+28-47
=80-47
3.7x2.56-2.3
=9.472-2.3
=7.172
1.24+0.78+8.76
=(1.24+8.76)+0.78
=10+0.78
=10.78
1/2-(4/5-1/2)
=1/2+1/2-4/5
=1-4/5
=1/5
4800÷25÷4
=4800÷(25x4)
=4800÷100
=4800÷100
=48
2/5-(3/8-3/5)
=2/5+3/5-3/8
=1-3/8
=5/8
3/4-(3/7-1/4)
=3/4+1/4-3/7
=1-3/7
=4/7
3.2x0.125x2.5
=0.125x8x(0.4x2.5)
=1x1
=1
0.4×125×25×0.8
=(0.4×25)×(125×0.8)
=10×100
=1000
9123-(123+8.8)
=9123-123-8.8
=9000-8.8
=8991.2
1.24×8.3+8.3×1.76
=8.3×(1.24+1.76)
=8.3×3
=24.9
9999×1001
=9999×(1000+1)
=9999×1000+9999×1
=10008999
14.8×6.3-6.3×6.5+8.3×3.7
=(14.8-6.5)×6.3+8.3×3.7
=8.3×6.3+8.3×3.7
=8.3×(6.3+3.7)
=8.3×10
=83
1.24+0.78+8.76
=(1.24+8.76)+0.78
=10+0.78
=10.78
933-157-43
=933-(157+43)
=933-200
=733
4821-998
=4821-1000+2
=3823
32×125×25
=4×8×125×25
=(4×25)×(8×125)
=100×1000
=100000
1.24+0.78+8.76
=(1.24+8.76)+0.78
=10+0.78
=10.78
1/2-(4/5-1/2)
=1/2+1/2-4/5
=1-4/5
=1/5
4800÷25÷4
=4800÷(25x4)
=4800÷100
=4800÷100
=48
2/5-(3/8-3/5)
=2/5+3/5-3/8
=1-3/8
=5/8
3/4-(3/7-1/4)
=3/4+1/4-3/7
=1-3/7
=4/7
3.2x0.125x2.5
=0.125x8x(0.4x2.5)
=1x1
=1
0.4×125×25×0.8
=(0.4×25)×(125×0.8)
=10×100
=1000
1.25×(8+10)
=1.25×8+1.25×10
=10+12.5
=22.5
9123-(123+8.8)
=9123-123-8.8
=9000-8.8
=8991.2
1.24×8.3+8.3×1.76
=8.3×(1.24+1.76)
=8.3×3
=24.9
9999×1001
=9999×(1000+1)
=9999×1000+9999×1
=10008999
14.8×6.3-6.3×6.5+8.3×3.7
=(14.8-6.5)×6.3+8.3×3.7
=8.3×6.3+8.3×3.7
=8.3×(6.3+3.7)
=8.3×10
=83
1.24+0.78+8.76
=(1.24+8.76)+0.78
=10+0.78
=10.78
933-157-43
=933-(157+43)
=933-200
=733
4821-998
=4821-1000+2
=3823
32×125×25
=4×8×125×25
=(4×25)×(8×125)
=100×1000
=100000
1.8+18÷1.5-0.5×0.3
=1.8+12-0.15
=13.8-0.15
=13.65
6.5×8+3.5×8-47
=52+28-47
=80-47
3.7x2.56-2.3
=9.472-2.3
=7.172
1.24+0.78+8.76
=(1.24+8.76)+0.78
=10+0.78
=10.78
1/2-(4/5-1/2)
=1/2+1/2-4/5
=1-4/5
=1/5
4800÷25÷4
=4800÷(25x4)
=4800÷100
=4800÷100
=48
2/5-(3/8-3/5)
=2/5+3/5-3/8
=1-3/8
=5/8
3/4-(3/7-1/4)
=3/4+1/4-3/7
=1-3/7
=4/7
3.2x0.125x2.5
=0.125x8x(0.4x2.5)
=1x1
=1
0.4×125×25×0.8
=(0.4×25)×(125×0.8)
=10×100
=1000
9123-(123+8.8)
=9123-123-8.8
=9000-8.8
=8991.2
1.24×8.3+8.3×1.76
=8.3×(1.24+1.76)
=8.3×3
=24.9
9999×1001
=9999×(1000+1)
=9999×1000+9999×1
=10008999
14.8×6.3-6.3×6.5+8.3×3.7
=(14.8-6.5)×6.3+8.3×3.7
=8.3×6.3+8.3×3.7
=8.3×(6.3+3.7)
=8.3×10
=83
1.24+0.78+8.76
=(1.24+8.76)+0.78
=10+0.78
=10.78
933-157-43
=933-(157+43)
=933-200
=733
4821-998
=4821-1000+2
=3823
32×125×25
=4×8×125×25
=(4×25)×(8×125)
=100×1000
=100000
1.8+18÷1.5-0.5×0.3
=1.8+12-0.15
=13.8-0.15
=13.65
6.5×8+3.5×8-47
=52+28-47
=80-47
=33
3.7x2.56-2.3
=9.472-2.3
=7.172
(25+2又5/21)×21/26
=(26+26/21)x21/26
=26x21/26+26/21x21/26
=21+1
=22
6/11×3/7+4/11×6/7
=6/11x3/7+6/11x4/7
=6/11x(3/7+4/7)
=6/11x1
=6/11
45×2/3+1/3×45
=45x(2/3+1/3)
=45x1
=45