如题所述
300÷125÷8=300÷ï¼125Ã8ï¼=300÷1000=0.3
396-96-172-28 =ï¼396-96ï¼-ï¼172+28ï¼= 300-200 = 100
125*24 = 125*8*3 = 1000*3 = 3000
26*15 = ï¼20+6ï¼*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
ï¼98+98+98+98ï¼*25 = 4*98*25 = 4*25*98 = 100*98 = 9800
472*5*20 = 472*ï¼5*20ï¼= 472*100 = 47200
125*ï¼8+800ï¼= 125*8+125*800 = 1000 + 100000 = 101000
129*38+38*872-38 = 38*ï¼129+872-1ï¼=38*1000=38000
18*8*125*5 = 18*5*ï¼125*8ï¼=90*1000 = 9000
1384-(450+384) = 1384-384-450 = 1000-450 = 550
37*99 = 37*ï¼100-1ï¼= 37*100 - 37 = 3700-37=3663
82*98 = 82*ï¼100-2ï¼=8200- 164 = 8036
202*28 = ï¼200+2ï¼*28 = 200*28+2*28 =5600+56 =5656
76*105 = 76*100 + 76*5 = 7600+380 = 7980
82*14+18*14 = 14*ï¼82+18ï¼=14*100=1400
69*99+69 = 69*ï¼99+1ï¼=69*100 = 6900
396-96-172-28 =ï¼396-96ï¼-ï¼172+28ï¼= 300-200 = 100
125*24 = 125*8*3 = 1000*3 = 3000
26*15 = ï¼20+6ï¼*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
ï¼98+98+98+98ï¼*25 = 4*98*25 = 4*25*98 = 100*98 = 9800
472*5*20 = 472*ï¼5*20ï¼= 472*100 = 47200
125*ï¼8+800ï¼= 125*8+125*800 = 1000 + 100000 = 101000
129*38+38*872-38 = 38*ï¼129+872-1ï¼=38*1000=38000
18*8*125*5 = 18*5*ï¼125*8ï¼=90*1000 = 9000
1384-(450+384) = 1384-384-450 = 1000-450 = 550
37*99 = 37*ï¼100-1ï¼= 37*100 - 37 = 3700-37=3663
82*98 = 82*ï¼100-2ï¼=8200- 164 = 8036
202*28 = ï¼200+2ï¼*28 = 200*28+2*28 =5600+56 =5656
76*105 = 76*100 + 76*5 = 7600+380 = 7980
82*14+18*14 = 14*ï¼82+18ï¼=14*100=1400
69*99+69 = 69*ï¼99+1ï¼=69*100 = 6900
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第1个回答 2016-03-27
题呢?