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脱式计算: (15.6+9.744/2.4)*0.5
2.881/0.43-3.5*0.24
13.5*0.68/8.5
43.6-7.6*4.1
(86.9+667.6)/50.3
(73.5+80.5)/(10+12)
(7.8*15+5.1*10+6*5)/(15+10+5)
12.53-1.35*2-9.3
0.8*(4-3.75)/0.1
6-1.3*(10-7.3)
口算题 100-63= 18+39= 4/20=
95/19= 245+27= 13*60= 96-58=
104+79= 0.3/1.5= 236+99= 3700+643=
0.48/120= 4*0.25= 1.5-0.06= 25*19=
500-68= 10.6-5.2= 728/7= 2.8*0.4=
40*5.2= 3.5*200= 1.01*99= 1.6/3.2=
402*15= 95/19= 17*40= 45*80=
531-102= 0.8-0.37= 10-5.4=
1、0.9+10.08+0.92+0.1 2、21.8-4.53-5.47
=(0.9+0.1)+(10.08+0.92) =21.8-(4.53+5.47)
=1+11 =21.8-10
=12 =11.8
3、10.75-(2.75+0。8) 4、3.14-(2.14-0.875)
=10.75-2.75-0.8 =3.14-2.14+0.875
=8-0.8 =1+0.875
=7.2 =1.875
5、7.3-3.96+1.7 6、3.29+6.425+6.71
=7.3+1.7-3.96 =3.29+6.71+6.425
=9-3.96 =10+6.425
=5.04 =16.425
2/1*2=1 3/1*3=1 3/2*3=2 3/1*6=2
4/3*8=6 5/3*20=12 7/3*14=6 8/7*40=35
4/3*16=12 9/5*27=15 2/1*30=15 12/7*24=14
30/1*30=1 51/9*102=18 19/9*76=36 4/9*8=18
5/8*90=144 99/98*99=98 3/14*6=28 7/1*28=4
10/1*90=9 5/3*105=63 19/7*38=14 5/1*25=5
8/19*16=38 61/60*122=120 7/2*28=8 6/1*48=8
9/7*18=14 25/7*100=28 9/5*81=45 8/9*16=18
(*^__^*) 嘻嘻……
2/1*2=1 3/1*3=1 3/2*3=2 3/1*6=2
4/3*8=6 5/3*20=12 7/3*14=6 8/7*40=35
4/3*16=12 9/5*27=15 2/1*30=15 12/7*24=14
30/1*30=1 51/9*102=18 19/9*76=36 4/9*8=18
5/8*90=144 99/98*99=98 3/14*6=28 7/1*28=4
10/1*90=9 5/3*105=63 19/7*38=14 5/1*25=5
8/19*16=38 61/60*122=120 7/2*28=8 6/1*48=8
9/7*18=14 25/7*100=28 9/5*81=45 8/9*16=18
2.881/0.43-3.5*0.24
13.5*0.68/8.5
43.6-7.6*4.1
(86.9+667.6)/50.3
(73.5+80.5)/(10+12)
(7.8*15+5.1*10+6*5)/(15+10+5)
12.53-1.35*2-9.3
0.8*(4-3.75)/0.1
6-1.3*(10-7.3)
口算题 100-63= 18+39= 4/20=
95/19= 245+27= 13*60= 96-58=
104+79= 0.3/1.5= 236+99= 3700+643=
0.48/120= 4*0.25= 1.5-0.06= 25*19=
500-68= 10.6-5.2= 728/7= 2.8*0.4=
40*5.2= 3.5*200= 1.01*99= 1.6/3.2=
402*15= 95/19= 17*40= 45*80=
531-102= 0.8-0.37= 10-5.4=
1、0.9+10.08+0.92+0.1 2、21.8-4.53-5.47
=(0.9+0.1)+(10.08+0.92) =21.8-(4.53+5.47)
=1+11 =21.8-10
=12 =11.8
3、10.75-(2.75+0。8) 4、3.14-(2.14-0.875)
=10.75-2.75-0.8 =3.14-2.14+0.875
=8-0.8 =1+0.875
=7.2 =1.875
5、7.3-3.96+1.7 6、3.29+6.425+6.71
=7.3+1.7-3.96 =3.29+6.71+6.425
=9-3.96 =10+6.425
=5.04 =16.425
2/1*2=1 3/1*3=1 3/2*3=2 3/1*6=2
4/3*8=6 5/3*20=12 7/3*14=6 8/7*40=35
4/3*16=12 9/5*27=15 2/1*30=15 12/7*24=14
30/1*30=1 51/9*102=18 19/9*76=36 4/9*8=18
5/8*90=144 99/98*99=98 3/14*6=28 7/1*28=4
10/1*90=9 5/3*105=63 19/7*38=14 5/1*25=5
8/19*16=38 61/60*122=120 7/2*28=8 6/1*48=8
9/7*18=14 25/7*100=28 9/5*81=45 8/9*16=18
(*^__^*) 嘻嘻……
2/1*2=1 3/1*3=1 3/2*3=2 3/1*6=2
4/3*8=6 5/3*20=12 7/3*14=6 8/7*40=35
4/3*16=12 9/5*27=15 2/1*30=15 12/7*24=14
30/1*30=1 51/9*102=18 19/9*76=36 4/9*8=18
5/8*90=144 99/98*99=98 3/14*6=28 7/1*28=4
10/1*90=9 5/3*105=63 19/7*38=14 5/1*25=5
8/19*16=38 61/60*122=120 7/2*28=8 6/1*48=8
9/7*18=14 25/7*100=28 9/5*81=45 8/9*16=18
参考资料:hi
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第1个回答 2009-08-14
脱式计算: (15.6+9.744/2.4)*0.5
2.881/0.43-3.5*0.24
13.5*0.68/8.5
43.6-7.6*4.1
(86.9+667.6)/50.3
(73.5+80.5)/(10+12)
(7.8*15+5.1*10+6*5)/(15+10+5)
12.53-1.35*2-9.3
0.8*(4-3.75)/0.1
6-1.3*(10-7.3)
口算题 100-63= 18+39= 4/20=
95/19= 245+27= 13*60= 96-58=
104+79= 0.3/1.5= 236+99= 3700+643=
0.48/120= 4*0.25= 1.5-0.06= 25*19=
500-68= 10.6-5.2= 728/7= 2.8*0.4=
40*5.2= 3.5*200= 1.01*99= 1.6/3.2=
402*15= 95/19= 17*40= 45*80=
531-102= 0.8-0.37= 10-5.4=
1、0.9+10.08+0.92+0.1 2、21.8-4.53-5.47
=(0.9+0.1)+(10.08+0.92) =21.8-(4.53+5.47)
=1+11 =21.8-10
=12 =11.8
3、10.75-(2.75+0。8) 4、3.14-(2.14-0.875)
=10.75-2.75-0.8 =3.14-2.14+0.875
=8-0.8 =1+0.875
=7.2 =1.875
5、7.3-3.96+1.7 6、3.29+6.425+6.71
=7.3+1.7-3.96 =3.29+6.71+6.425
=9-3.96 =10+6.425
=5.04 =16.425
2.881/0.43-3.5*0.24
13.5*0.68/8.5
43.6-7.6*4.1
(86.9+667.6)/50.3
(73.5+80.5)/(10+12)
(7.8*15+5.1*10+6*5)/(15+10+5)
12.53-1.35*2-9.3
0.8*(4-3.75)/0.1
6-1.3*(10-7.3)
口算题 100-63= 18+39= 4/20=
95/19= 245+27= 13*60= 96-58=
104+79= 0.3/1.5= 236+99= 3700+643=
0.48/120= 4*0.25= 1.5-0.06= 25*19=
500-68= 10.6-5.2= 728/7= 2.8*0.4=
40*5.2= 3.5*200= 1.01*99= 1.6/3.2=
402*15= 95/19= 17*40= 45*80=
531-102= 0.8-0.37= 10-5.4=
1、0.9+10.08+0.92+0.1 2、21.8-4.53-5.47
=(0.9+0.1)+(10.08+0.92) =21.8-(4.53+5.47)
=1+11 =21.8-10
=12 =11.8
3、10.75-(2.75+0。8) 4、3.14-(2.14-0.875)
=10.75-2.75-0.8 =3.14-2.14+0.875
=8-0.8 =1+0.875
=7.2 =1.875
5、7.3-3.96+1.7 6、3.29+6.425+6.71
=7.3+1.7-3.96 =3.29+6.71+6.425
=9-3.96 =10+6.425
=5.04 =16.425
第2个回答 2009-08-14
2/1*2=1 3/1*3=1 3/2*3=2 3/1*6=2
4/3*8=6 5/3*20=12 7/3*14=6 8/7*40=35
4/3*16=12 9/5*27=15 2/1*30=15 12/7*24=14
30/1*30=1 51/9*102=18 19/9*76=36 4/9*8=18
5/8*90=144 99/98*99=98 3/14*6=28 7/1*28=4
10/1*90=9 5/3*105=63 19/7*38=14 5/1*25=5
8/19*16=38 61/60*122=120 7/2*28=8 6/1*48=8
9/7*18=14 25/7*100=28 9/5*81=45 8/9*16=18
(*^__^*) 嘻嘻……
4/3*8=6 5/3*20=12 7/3*14=6 8/7*40=35
4/3*16=12 9/5*27=15 2/1*30=15 12/7*24=14
30/1*30=1 51/9*102=18 19/9*76=36 4/9*8=18
5/8*90=144 99/98*99=98 3/14*6=28 7/1*28=4
10/1*90=9 5/3*105=63 19/7*38=14 5/1*25=5
8/19*16=38 61/60*122=120 7/2*28=8 6/1*48=8
9/7*18=14 25/7*100=28 9/5*81=45 8/9*16=18
(*^__^*) 嘻嘻……
第3个回答 2009-08-14
2/1*2=1 3/1*3=1 3/2*3=2 3/1*6=2
4/3*8=6 5/3*20=12 7/3*14=6 8/7*40=35
4/3*16=12 9/5*27=15 2/1*30=15 12/7*24=14
30/1*30=1 51/9*102=18 19/9*76=36 4/9*8=18
5/8*90=144 99/98*99=98 3/14*6=28 7/1*28=4
10/1*90=9 5/3*105=63 19/7*38=14 5/1*25=5
8/19*16=38 61/60*122=120 7/2*28=8 6/1*48=8
9/7*18=14 25/7*100=28 9/5*81=45 8/9*16=18本回答被网友采纳
4/3*8=6 5/3*20=12 7/3*14=6 8/7*40=35
4/3*16=12 9/5*27=15 2/1*30=15 12/7*24=14
30/1*30=1 51/9*102=18 19/9*76=36 4/9*8=18
5/8*90=144 99/98*99=98 3/14*6=28 7/1*28=4
10/1*90=9 5/3*105=63 19/7*38=14 5/1*25=5
8/19*16=38 61/60*122=120 7/2*28=8 6/1*48=8
9/7*18=14 25/7*100=28 9/5*81=45 8/9*16=18本回答被网友采纳
第4个回答 2012-07-17
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