15个回答
2016-02-17 · 知道合伙人教育行家
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300÷125÷8
=300÷(125×8)
=300÷1000
=0.3
396-96-172-28
=(396-96)-(172+28)
= 300-200
= 100
125*24
= 125*8*3
= 1000*3
= 3000
26*15
= (20+6)*15
= 20*15 + 6*15
= 300+90
=390
25*99*4
= 25*4*99
= 100*99
= 9900
250*32
= 250*4*8
= 1000*8
= 8000
(98+98+98+98)*25
= 4*98*25
= 4*25*98
= 100*98
= 9800
=300÷(125×8)
=300÷1000
=0.3
396-96-172-28
=(396-96)-(172+28)
= 300-200
= 100
125*24
= 125*8*3
= 1000*3
= 3000
26*15
= (20+6)*15
= 20*15 + 6*15
= 300+90
=390
25*99*4
= 25*4*99
= 100*99
= 9900
250*32
= 250*4*8
= 1000*8
= 8000
(98+98+98+98)*25
= 4*98*25
= 4*25*98
= 100*98
= 9800
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8.37-3.25-(1.37+1.75)
=8.37-1.37-(3.25+1.75)
=7-5
=2
3.4×99+3.4
=3.4×99+3.4×1
=3.4×(99+1)
=3.4×100
=340
(125+125)×8
=125×8+125×8
=1000+1000
=2000
25×36
=25×4×9
=100×9
=900
(2.5+12.5)×40
=2.5×40+12.5×40
=100+500
=600
6.5×9.5+6.5×0.5
=6.5×(9.5+0.5)
=6.5×10
=65
=8.37-1.37-(3.25+1.75)
=7-5
=2
3.4×99+3.4
=3.4×99+3.4×1
=3.4×(99+1)
=3.4×100
=340
(125+125)×8
=125×8+125×8
=1000+1000
=2000
25×36
=25×4×9
=100×9
=900
(2.5+12.5)×40
=2.5×40+12.5×40
=100+500
=600
6.5×9.5+6.5×0.5
=6.5×(9.5+0.5)
=6.5×10
=65
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0.4x125x25x0.8
=(0.4x25)X(125x0.8)
=100x100
=1000
1.25x(8+10)
=1.25x8+1.25x10
=10十12.5
=22.5
9123-(123+8.8)
=9123-123-8.8
=9000-8.8
8991.2
1.24x8.3+8.3x1.76
=8.3x(1.24+1.76)
=8.3x3
=24.9
933-157-43
=933-(157+43)
=933-200
=733
=(0.4x25)X(125x0.8)
=100x100
=1000
1.25x(8+10)
=1.25x8+1.25x10
=10十12.5
=22.5
9123-(123+8.8)
=9123-123-8.8
=9000-8.8
8991.2
1.24x8.3+8.3x1.76
=8.3x(1.24+1.76)
=8.3x3
=24.9
933-157-43
=933-(157+43)
=933-200
=733
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就是有一些那个题出的太简单了,应该难一点就好了,因为哪一点的话比较好一点,让人学习的话更快了计算那些计算题儿就好多了。
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0.25x1.25x32
=0.25x1.25x(8x4丿
=0.25X4x1.25x8
=1X10
=10
=0.25x1.25x(8x4丿
=0.25X4x1.25x8
=1X10
=10
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