(2)25脳39 125脳81
125×25×64
=125×25×8×8
=（125×8）×（25×8）
=1000×200
=200000
1.45+15脳6= 135
2.250梅5脳8=400
3.6脳5梅2脳4=60
4.30脳3+8=98
5.400梅4+20脳5= 200
6.10+12梅3+20=34
7.(80梅20+80)梅4=21
8.70+(100-10脳5)=120
9.360梅40= 9
10.40脳20= 800
11.80-25= 55
12.70+45=115
13.90脳2= 180
14.16脳6= 96
15.300脳6= 1800
16.540梅9=60
17.30脳20= 600
18.400梅4= 100
19.350-80= 270
20.160+70=230
21.18-64梅8= 10
22.42梅6+20=27
23.40-5脳7= 5
24.80+60梅3=100
25.41+18梅2= 50
26.75-11脳5= 20
27.42+7-29= 20
28.5600梅80=70
29.25脳16= 400
30.120脳25= 3000
31.36脳11= 396
32.1025梅25=41
33.336+70= 406
34.25脳9脳4= 900
35.200-33脳3= 101
36.3020-1010=2010
37.12脳50= 600
38.25脳8= 200
39.23脳11= 253
40.125梅25=5
41.4200-2200=2000
42.220+80= 300
43.20脳8脳5= 800
44.600-3脳200=0
45.20+20梅2= 30
46.35-25梅5= 30
47.36+8-40= 4
48.2800梅40=70
49.98梅14 = 7
50.96梅24 = 4
51.56梅14 =4
52.65梅13 = 5
53.75梅15 = 5
54.120梅24 =5
55.200梅25 = 8
56.800梅16 = 50
57.840梅21 =40
58.560梅14 = 40
59.390梅13 = 30
60.600梅15 =40
61.72梅24 = 3
62.85梅17 = 5
63.90梅15 =6
64.96梅16 = 6
65.78梅26 = 4
66.51梅17 =3
67.80梅40 = 2
68.100梅20 = 5
69.100梅4 =25
70.240梅40 = 6
71.920梅4 = 230
72.300梅60=5
73.64梅2 = 32
74.64梅4 = 16
75.50梅5 =10
76.60梅8 = 7.5
77.96梅4 = 24
78.90梅6 =15
79.400+80 = 480
80.400-80 = 320
81.40脳80 =3200
82.400梅80 = 5
83.48梅16 = 3
84.96梅24 =4
85.160脳5= 800
86.4脳250= 1000
87.0脳518= 0
88.10脳76= 760
89.36脳10=360
90.15脳6= 90
91.24脳3= 72
92.5脳18= 90
93.26脳4= 74
94.7脳15=105
95.32脳30= 960
96.40脳15= 600
97.60脳12= 720
98.23脳30= 690
99.30脳50=1500
100.5脳700=3500
25 -15 -80 = 10 -80 = -70
26 -6 -64 = 20 -64 = -44
27 + 3 -48 = 30 -48 = -18
28 + 12 -32 = 40 -32 = 8
29 + 21 -16 = 50 -16 = 34
30 + 30 + 0 = 60 + 0 = 60
31 + 39 + 16 = 70 + 16 = 86
32 + 48 + 32 = 80 + 32 = 112
33 + 57 + 48 = 90 + 48 = 138
34 + 66 + 64 = 100 + 64 = 164
35 + 75 + 80 = 110 + 80 = 190
36 + 84 + 96 = 120 + 96 = 216
37 + 93 + 112 = 130 + 112 = 242
38 + 102 + 128 = 140 + 128 = 268
39 + 111 + 144 = 150 + 144 = 294
40 -30 -140 = 10 -140 = -130
41 -21 -124 = 20 -124 = -104
42 -12 -108 = 30 -108 = -78
43 -3 -92 = 40 -92 = -52
44 + 6 -76 = 50 -76 = -26
45 + 15 -60 = 60 -60 = 0
46 + 24 -44 = 70 -44 = 26
47 + 33 -28 = 80 -28 = 52
48 + 42 -12 = 90 -12 = 78
49 + 51 + 4 = 100 + 4 = 104
50 + 60 + 20 = 110 + 20 = 130
51 + 69 + 36 = 120 + 36 = 156
52 + 78 + 52 = 130 + 52 = 182
53 + 87 + 68 = 140 + 68 = 208
54 + 96 + 84 = 150 + 84 = 234
55 -45 -200 = 10 -200 = -190
56 -36 -184 = 20 -184 = -164
57 -27 -168 = 30 -168 = -138
58 -18 -152 = 40 -152 = -112
59 -9 -136 = 50 -136 = -86
60 + 0 -120 = 60 -120 = -60
61 + 9 -104 = 70 -104 = -34
62 + 18 -88 = 80 -88 = -8
63 + 27 -72 = 90 -72 = 18
64 + 36 -56 = 100 -56 = 44
65 + 45 -40 = 110 -40 = 70
66 + 54 -24 = 120 -24 = 96
67 + 63 -8 = 130 -8 = 122
68 + 72 + 8 = 140 + 8 = 148
69 + 81 + 24 = 150 + 24 = 174
70 -60 -260 = 10 -260 = -250
71 -51 -244 = 20 -244 = -224
72 -42 -228 = 30 -228 = -198
73 -33 -212 = 40 -212 = -172
74 -24 -196 = 50 -196 = -146
7+14=21 ...18-9=9...
8+16=24 ...25-5=20...
9+18=27...56-45=11...
10+20=30...45-23=22...
11+22=33...78-23=55...
12+24=36...
10-3=7
15-4=11
20-5=15
25-6=19
30-7=23
35-8=27
40-9=31
45-10=35
50-11=39
55-12=43
60-13=47
65-14=51
70-15=55
75-16=59
80-17=63
85-18=67
90-19=71
95-20=75
100-21=79
105-22=83
110-23=87
115-24=91
120-25=95
125-26=99
130-27=103
13+26=39...
14+28=42...
15+30=45...
16+32=48...
17+34=51...
18+36=54...
19+38=57...
20+40=60...
21+42=63...
22+44=66...
23+46=69...
24+48=72...
25+50=75...
26+52=78...
27+54=81...
28+56=84...
29+58=87...
30+60=90...
31+62=93...
32+64=96...
33+66=99...
5 梅1 =5
10 梅2 =5
15 梅3 =5
20 梅4 =5
25 梅5 =5
30 梅6 =5
35 梅7 =5
40 梅8 =5
45 梅9 =5
50 梅10 =5
55 梅11 =5
60 梅12 =5
65 梅13 =5
70 梅14 =5
75 梅15 =5
80 梅16= 5
85 梅17= 5
90 梅18= 5
95 梅19= 5
100 梅20 =5
26 -6 -64 = 20 -64 = -44
27 + 3 -48 = 30 -48 = -18
28 + 12 -32 = 40 -32 = 8
29 + 21 -16 = 50 -16 = 34
30 + 30 + 0 = 60 + 0 = 60
31 + 39 + 16 = 70 + 16 = 86
32 + 48 + 32 = 80 + 32 = 112
33 + 57 + 48 = 90 + 48 = 138
34 + 66 + 64 = 100 + 64 = 164
35 + 75 + 80 = 110 + 80 = 190
36 + 84 + 96 = 120 + 96 = 216
37 + 93 + 112 = 130 + 112 = 242
38 + 102 + 128 = 140 + 128 = 268
39 + 111 + 144 = 150 + 144 = 294
40 -30 -140 = 10 -140 = -130
41 -21 -124 = 20 -124 = -104
42 -12 -108 = 30 -108 = -78
43 -3 -92 = 40 -92 = -52
44 + 6 -76 = 50 -76 = -26
45 + 15 -60 = 60 -60 = 0
46 + 24 -44 = 70 -44 = 26
47 + 33 -28 = 80 -28 = 52
48 + 42 -12 = 90 -12 = 78
49 + 51 + 4 = 100 + 4 = 104
50 + 60 + 20 = 110 + 20 = 130
51 + 69 + 36 = 120 + 36 = 156
52 + 78 + 52 = 130 + 52 = 182
53 + 87 + 68 = 140 + 68 = 208
54 + 96 + 84 = 150 + 84 = 234
55 -45 -200 = 10 -200 = -190
56 -36 -184 = 20 -184 = -164
57 -27 -168 = 30 -168 = -138
58 -18 -152 = 40 -152 = -112
59 -9 -136 = 50 -136 = -86
60 + 0 -120 = 60 -120 = -60
61 + 9 -104 = 70 -104 = -34
62 + 18 -88 = 80 -88 = -8
63 + 27 -72 = 90 -72 = 18
64 + 36 -56 = 100 -56 = 44
65 + 45 -40 = 110 -40 = 70
66 + 54 -24 = 120 -24 = 96
67 + 63 -8 = 130 -8 = 122
68 + 72 + 8 = 140 + 8 = 148
69 + 81 + 24 = 150 + 24 = 174
70 -60 -260 = 10 -260 = -250
71 -51 -244 = 20 -244 = -224
72 -42 -228 = 30 -228 = -198
73 -33 -212 = 40 -212 = -172
74 -24 -196 = 50 -196 = -146
=25×39+（25×5）×81
=25×39+25×（5×81）
=25×39+25×405
=25×（39+405）
=25×444
=25×（4×111）
=25×4×111
=100×111
=11100
秦孙浓替： 25x39+25+100 =25x(39+1)+100=25x40+100=1000+100=1100
永清县15912426603： 3、2、6、4有几种24的算法? - ？
秦孙浓替：[答案] 1:(3 - 2) 脳 6 脳 4 2:((3 - 2) 脳 6) 脳 4 3:(3 - 2) 脳 (6 脳 4) 4:3 脳 (2 脳 6 - 4) 5:3 脳 ((2 脳 6) - 4) 6:(3 - 2) 脳 4 脳 6 ... 75:(2 脳 6) + (4 脳 3) 76:(2 脳 6 - 4) 脳 3 77:((2 脳 6) - 4) 脳 3 78:2 + 4 + 3 脳 6 79:(2 + 4) + 3 脳 6 80:2 + (4 + 3 脳 6) 81:2 + (4 ...
永清县15912426603： 谁能给我小学四年级的混合计算法的算式200道,用递等式计算,最好有答案,不要只有一道横式的题!跪求! - ？
秦孙浓替： 175-75÷25 68+35*13 725-(125+237) (114+166)÷35 432÷(9*8) 189-60+40 三、简便计算. 216...
永清县15912426603： 25*9x48x(125x13)的简便计算 - ？
秦孙浓替： 25*9*48*125*13=25*2*3*8*125*9*13=50*3*1000*9*13=39*3*50000=117*50000=5850000
永清县15912426603： (1)(59+187)÷3 (2)125*8*39 (3)38*(62+38) (4)25*16(简算 - ？
秦孙浓替： (1)原式=246÷3 =82 (2)原式=1000*39 =39000(3)原式=38*100 =3800 (4)原式=25*4*4 = 400
永清县15912426603： 125乘以39加125用简便方法怎样计算 - ？
秦孙浓替： 125*39+125 =125*(39+1) =125*40 =5000
永清县15912426603： 39*125*25*5*64用奥数的方法如何解 - ？
秦孙浓替： 39*125*25*5*64=39*125*25*5*(2*4*8)=39*(125*8)*(25*4)*(5*2)=39*1000*100*10=39000000
永清县15912426603： 4,8,9,12怎样运算才得24 - ？
秦孙浓替：[答案] 4,8,9,12镄?4镣圭瓟妗堬细 1:4 脳 8 脳 9 梅 12 2:(4 脳 8) 脳 9 梅 12 3:(4 脳 8 脳 9) 梅 12 4:((4 脳 8) 脳 9) 梅 12 5:(4 脳 (8 脳 9)... 22:(4 脳 8) 梅 (12 梅 9) 23:4 脳 9 脳 8 梅 12 24:(4 脳 9) 脳 8 梅 12 25:(4 脳 9 脳 8) 梅 12 26:((4 脳 9) 脳 8) 梅 12 27:(4 脳 (9 脳...
永清县15912426603： (125*78*88)/(11*39*25) 怎么巧算 - ？
秦孙浓替： (125*78*88)/(11*39*25) =125/25*78/39*88/11 =5*2*8 =80
永清县15912426603： 求30道小学简便运算.60道口算.30道小学解方程 - ？
秦孙浓替： 12+24=36... 10-3=7 15-4=11 20-5=15 25-6=19 30-7=23 35-8=27 40-9=31 45-10=35 50-11=39 55-12=43 60-13=47 65-14=51 70-15=55 75-16=59 80-17=63 85-18=67 90-19=71 9...
