脱式计算（3/4+1/6）*2/3 25*1/5-5*1/5 6/11*7/15*10 （1/7+1/4）*28 (21+2/5)*5/7 39*7/13*2/3
计算60*2/5= 4*2/9= 脱式计算3/10*2/3+1/4 20*2/5-5/8 2/9*8+2/9 5/7*1/5*49 48*1/12*5/6
（3/4+1/6）*2/3
=3/4*2/3+1/6*2/3
=1/2+1/9
=11/18
25*1/5-5*1/5
=5-1
=4
6/11*7/15*10
=84/33
=28/11
（1/7+1/4）*28
=1/7*28+1/4*28
=4+7
=11
(21+2/5)*5/7
=21*5/7+2/5*5/7
=15+2/7
=15又2/7
39*7/13*2/3
=14
谁可以帮我出几道脱式计算
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脱式计算大全及答案30道
4×102－2×49 =408-2×49 =408-98 =310 2.25×（2+4）=25×2+25×4 =50+100 =150 3.12×5+8 =60+8 =68 4.99×101 =99×(100+1)=99×100+99×1 =9900+99 =9999 5.25×（78×4）=25×4×78 =100×78 =7800 6.（25＋12）×4 =25×4+12×4 =100+48 =148 7...
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