急求小学四年上数学巧算题400道

急求小学四年上数学巧算题400道
孩子的假期作业要求做400道乘除法的数学巧算题 例:57×32+32×43 72+99×72 125×(40+8) 解(57+43)×32 (1+99)×72 125×40+125×8
xianggang2018 1年前 已收到6个回答 举报

天琴羿轮 幼苗

共回答了14个问题采纳率:92.9% 举报

25×20=
4÷20=
3÷1.5=
100-63=
3.2+1.68=
48×0.02=
160+4.5=
7.8+0.9=
1.53-0.7=
75÷15=
420÷35=
25×12=
500-68=
13.5÷5=
104+79=
402×5=
150÷75=
13×60=
180-65=
24.5+2.7=
7.28÷0.7=
96-58=
45×80=
10-5.4=
8×0.5=
17×40=
48+39=
95÷1.9=
2.8×0.4=
10.6-5.2=
92÷1.4=
0.32×50=
150÷0.75=
1.48÷1.2=
1.1×99=
8×1.25=
9.8÷0.14=
531-102=
362-97=
236+98=
69+0.71=
2.8×0.5=
64÷0.16=
6.3-5.9=
2.5+8.04=
4000×0.22=
47÷0.001=
18.5+0.9=
10.8-1.6=
01÷0.5=
8×0.25=
66+0.44=
5.85-0.34=
25×5×8=
8.6÷0.4÷5=
120-183=
04×1500=
0.18÷50=
10.6+5.8+1.4=
125×0.2=
9+3.7+2.1=
9.2×0.25×4=
2.07-0.65-1.35=
5.2÷8÷0.125=
8×0.2×0.5=
2+3.8-2.8=
8÷(0.4×0.2)=
4+0.62+0.28=
25×(40+100)=
7×1.3+7×6.7(0.66+0.12)÷6=
7.5-(2.5+3.8)=
05+0.05×99=
108-3.9-4.1=
3(10+0.5)=
32+5.8+0.68=
100×0.65+100=
2+3.8-2.8=
2÷0.125÷8=
46×222+18×666
37×333+21×999
30×444+35×888
35*25*4 52*125*8 99*25*4 26*25*4 35*25*4 15*25*4
98*25*4 54*25*4 65*125*8 54*25*4 26*4*25 85*125*4
25*9*4 125*6*8 4*65*25 8*254*125 125*698758*4
99*1+99*99 69*60+69*39+69
6.9+4.8+3.1 0.456+6.22+3.78
4.02+5.4+0.98 5.17-1.8-3.2
7.85+2.34-0.85+4.66 3.82+2.9+0.18+9.1 7.14-0.53-2.47
0.398+0.36+3.64 15.75+3.59-0.59+14.25
66.86-8.66-1.34 0.25×16.2×4 3.72×3.5+6.28×3.5 36.8-3.9-6.1
15.6×13.1-15.6-15.6×2.1 4.8×7.8+78×0.52 32+4.9-0.9
4.8×100.1 56.5×9.9+56.5 7.09×10.8-0.8×7.09
25.48-(9.4-0.52) 4.2÷3.5 320÷1.25÷8
18.76×9.9+18.76 3.52÷2.5÷0.4 3.9-4.1+6.1-5.9
5.6÷3.5 9.6÷0.8÷0.4 4.2×99+4.2
17.8÷(1.78×4) 0.49÷1.4 1.25×2.5×32 3.65×10.1
15.2÷0.25÷4 0.89×100.1
3.83×4.56+3.83×5.44 4.36×12.5×8 9.7×99+9.7
27.5×3.7-7.5×3.7 8.54÷2.5÷0.4 0.65×101 3.2×0.25×12.5
(45.9-32.7)÷8÷0.125 3.14×0.68+31.4×0.032 5.6÷1.25÷0.8÷2.5÷0.4
7.2×0.2+2.4×1.4 8.9×1.01 7.74×(2.8-1.3)+1.5×2.26
3.9×2.7+3.9×7.3 18-1.8÷0.125÷0.8 12.7×9.9+1.27
21×(9.3-3.7)-5.6 15.02-6.8-1.02 5.4×11-5.4
2.3×16+2.3×23+2.3 9.43-(6.28-1.57) 3.65×4.7-36.5×0.37
46×57+23×86 13.7×0.25-3.7÷4 2.22×9.9+6.66×6.7
101×0.87-0.91×87 10.7×16.1-15.1×10.7 0.79×199
4.8+8.63+5.2+0.37 5.93+0.19+2.81 1.76+0.195+3.24
2.35+1.713+0.287+7.65 1.57+0.245+7.43 6.02+3.6+1.98
0.134+2.66+0.866 1.27+3.9+0.73+16.1 7.5+4.9-6.5
3.07-0.38-1.62 1.29+3.7+2.71+6.3 8-2.45-1.55
3.25+1.79-0.59+1.75 23.4-0.8-13.4-7.2 0.32×403
3.2+0.36+4.8+1.64 1.23+3.4-0.23+6.6 0.25×36
12.7-(3.7+0.84) 36.54-1.76-4.54 0.25×0.73×4
7.6×0.8+0.2×7.6 0.85×199 0.25×8.5×4
1.28×8.6+0.72×8.6 12.5×0.96×0.8 10.4-9.6×0.35
0.8×(4.3×1.25) 3.12+3.12×99 28.6×101-28.6
0.86×15.7-0.86×14.7 2.4×102 2.31×1.2×0.5
14-7.32-2.68 2.64+8.67+7.36+11.33 70÷28
(2.5-0.25)×0.4 9.16×1.5-0.5×9.16 3.6-3.6×0.5
4.5÷1.8 4.2÷3.5 930÷0.6÷5
63.4÷2.5÷0.4 4.9÷1.4 3.9÷(1.3×5)
(7.7+1.54)÷0.7 2.5×2.4 2.7÷45 15÷(0.15×0.4)
0.35×1.25×2×0.8 32.4×0.9+0.1×32.4 15÷0.25
120-36×4÷18+35 (58+37)÷(64-9×5) (6.8-6.8×0.55)÷8.5 0.12× 4.8÷0.12×4.8 (3.2×1.5+2.5)÷1.6 6-1.6÷4= 5.38+7.85-5.37= 7.2÷0.8-1.2×5= 6-1.19×3-0.43= 6.5×(4.8-1.2×4)= 5.8×(3.87-0.13)+4.2×3.74 32.52-(6+9.728÷3.2)×2.5 [(7.1-5.6)×0.9-1.15] ÷2.5 5.4÷[2.6×(3.7-2.9)+0.62] 12×6÷(12-7.2)-6 12×6÷7.2-6 0.68×1.9+0.32×1.9 58+370)÷(64-45) 420+580-64×21÷28 136+6×(65-345÷23) 18.1+(3-0.299÷0.23)×1 (6.8-6.8×0.55)÷8.5 0.12× 4.8÷0.12×4.8 (3.2×1.5+2.5)÷1.6 3.2×6+(1.5+2.5)÷1.6 0.68×1.9+0.32×1.9 10.15-10.75×0.4-5.7 5.8×(3.87-0.13)+4.2×3.74 32.52-(6+9.728÷3.2)×2.5 [(7.1-5.6)×0.9-1.15] ÷2.5 5.4÷[2.6×(3.7-2.9)+0.62] 12×6÷(12-7.2)-6 12×6÷7.2-6 33.02-(148.4-90.85)÷2.5 (25%-695%120-36×4÷18+35 (58+37)÷(64-9×5) (6.8-6.8×0.55)÷8.5 0.12× 4.8÷0.12×4.8 (3.2×1.5+2.5)÷1.6 6-1.6÷4= 5.38+7.85-5.37= 7.2÷0.8-1.2×5= 6-1.19×3-0.43= 6.5×(4.8-1.2×4)=
120-36×4÷18+35 (58+37)÷(64-9×5) (6.8-6.8×0.55)÷8.5 0.12× 4.8÷0.12×4.8 (3.2×1.5+2.5)÷1.6 6-1.6÷4= 5.38+7.85-5.37= 7.2÷0.8-1.2×5= 6-1.19×3-0.43= 6.5×(4.8-1.2×4)= 5.8×(3.87-0.13)+4.2×3.74 32.52-(6+9.728÷3.2)×2.5 [(7.1-5.6)×0.9-1.15] ÷2.5 5.4÷[2.6×(3.7-2.9)+0.62] 12×6÷(12-7.2)-6 12×6÷7.2-6 0.68×1.9+0.32×1.9 58+370)÷(64-45) 420+580-64×21÷28 136+6×(65-345÷23) 18.1+(3-0.299÷0.23)×1 (6.8-6.8×0.55)÷8.5 0.12× 4.8÷0.12×4.8 (3.2×1.5+2.5)÷1.6 3.2×6+(1.5+2.5)÷1.6 0.68×1.9+0.32×1.9 10.15-10.75×0.4-5.7 5.8×(3.87-0.13)+4.2×3.74 32.52-(6+9.728÷3.2)×2.5 [(7.1-5.6)×0.9-1.15] ÷2.5 5.4÷[2.6×(3.7-2.9)+0.62] 12×6÷(12-7.2)-6 12×6÷7.2-6 33.02-(148.4-90.85)÷2.5 (25%-695%120-36×4÷18+35 (58+37)÷(64-9×5) (6.8-6.8×0.55)÷8.5 0.12× 4.8÷0.12×4.8 (3.2×1.5+2.5)÷1.6 6-1.6÷4= 5.38+7.85-5.37= 7.2÷0.8-1.2×5= 6-1.19×3-0.43= 6.5×(4.8-1.2×4)= 5.8×(3.87-0.13)+4.2×3.74 32.52-(6+9.728÷3.2)×2.5 [(7.1-5.6)×0.9-1.15] ÷2.5 5.4÷[2.6×(3.7-2.9)+0.62] 12×6÷(12-7.2)-6 12×6÷7.2-6 0.68×1.9+0.32×1.9 58+370)÷(64-45) 420+580-64×21÷28 136+6×(65-345÷23) 18.1+(3-0.299÷0.23)×1 (6.8-6.8×0.55)÷8.5 0.12× 4.8÷0.12×4.8 (3.2×1.5+2.5)÷1.6 3.2×6+(1.5+2.5)÷1.6 0.68×1.9+0.32×1.9 10.15-10.75×0.4-5.7 5.8×(3.87-0.13)+4.2×3.74 32.52-(6+9.728÷3.2)×2.5 [(7.1-5.6)×0.9-1.15] ÷2.5 5.4÷[2.6×(3.7-2.9)+0.62] 12×6÷(12-7.2)-6 12×6÷7.2-6 33.02-(148.4-90.85)÷2.5 (25%-695%-12%)*36 -12%)*36 9.9+3+0.1=(9.9+0.1)+3=10+39.9*12+9.9*88=9.9*(12+88)=9.9*100=990
6.9+4.8+3.1 0.456+6.22+3.78
4.02+5.4+0.98 5.17-1.8-3.2
7.85+2.34-0.85+4.66 3.82+2.9+0.18+9.1 7.14-0.53-2.47
0.398+0.36+3.64 15.75+3.59-0.59+14.25
66.86-8.66-1.34 0.25×16.2×4 3.72×3.5+6.28×3.5 36.8-3.9-6.1
15.6×13.1-15.6-15.6×2.1 4.8×7.8+78×0.52 32+4.9-0.9
4.8×100.1 56.5×9.9+56.5 7.09×10.8-0.8×7.09
25.48-(9.4-0.52) 4.2÷3.5 320÷1.25÷8
18.76×9.9+18.76 3.52÷2.5÷0.4 3.9-4.1+6.1-5.9
5.6÷3.5 9.6÷0.8÷0.4 4.2×99+4.2
17.8÷(1.78×4) 0.49÷1.4 1.25×2.5×32 3.65×10.1
15.2÷0.25÷4 0.89×100.1
3.83×4.56+3.83×5.44 4.36×12.5×8 9.7×99+9.7
27.5×3.7-7.5×3.7 8.54÷2.5÷0.4 0.65×101 3.2×0.25×12.5
(45.9-32.7)÷8÷0.125 3.14×0.68+31.4×0.032 5.6÷1.25÷0.8÷2.5÷0.4
7.2×0.2+2.4×1.4 8.9×1.01 7.74×(2.8-1.3)+1.5×2.26
3.9×2.7+3.9×7.3 18-1.8÷0.125÷0.8 12.7×9.9+1.27
21×(9.3-3.7)-5.6 15.02-6.8-1.02 5.4×11-5.4
2.3×16+2.3×23+2.3 9.43-(6.28-1.57) 3.65×4.7-36.5×0.37
46×57+23×86 13.7×0.25-3.7÷4 2.22×9.9+6.66×6.7
101×0.87-0.91×87 10.7×16.1-15.1×10.7 0.79×199
4.8+8.63+5.2+0.37 5.93+0.19+2.81 1.76+0.195+3.24
2.35+1.713+0.287+7.65 1.57+0.245+7.43 6.02+3.6+1.98
0.134+2.66+0.866 1.27+3.9+0.73+16.1 7.5+4.9-6.5
3.07-0.38-1.62 1.29+3.7+2.71+6.3 8-2.45-1.55
3.25+1.79-0.59+1.75 23.4-0.8-13.4-7.2 0.32×403
3.2+0.36+4.8+1.64 1.23+3.4-0.23+6.6 0.25×36
12.7-(3.7+0.84) 36.54-1.76-4.54 0.25×0.73×4
7.6×0.8+0.2×7.6 0.85×199 0.25×8.5×4
1.28×8.6+0.72×8.6 12.5×0.96×0.8 10.4-9.6×0.35
0.8×(4.3×1.25) 3.12+3.12×99 28.6×101-28.6
0.86×15.7-0.86×14.7 2.4×102 2.31×1.2×0.5
14-7.32-2.68 2.64+8.67+7.36+11.33 70÷28
(2.5-0.25)×0.4 9.16×1.5-0.5×9.16 3.6-3.6×0.5
4.5÷1.8 4.2÷3.5 930÷0.6÷5
63.4÷2.5÷0.4 4.9÷1.4 3.9÷(1.3×5)
(7.7+1.54)÷0.7 2.5×2.4 2.7÷45 15÷(0.15×0.4)
0.35×1.25×2×0.8 32.4×0.9+0.1×32.4 15÷0.25 120-36×4÷18+35 (58+37)÷(64-9×5) (6.8-6.8×0.55)÷8.5 0.12× 4.8÷0.12×4.8 (3.2×1.5+2.5)÷1.6 6-1.6÷4= 5.38+7.85-5.37= 7.2÷0.8-1.2×5= 6-1.19×3-0.43= 6.5×(4.8-1.2×4)= 5.8×(3.87-0.13)+4.2×3.74 32.52-(6+9.728÷3.2)×2.5 [(7.1-5.6)×0.9-1.15] ÷2.5 5.4÷[2.6×(3.7-2.9)+0.62] 12×6÷(12-7.2)-6 12×6÷7.2-6 0.68×1.9+0.32×1.9 58+370)÷(64-45) 420+580-64×21÷28 136+6×(65-345÷23) 18.1+(3-0.299÷0.23)×1 (6.8-6.8×0.55)÷8.5 0.12× 4.8÷0.12×4.8 (3.2×1.5+2.5)÷1.6 3.2×6+(1.5+2.5)÷1.6 0.68×1.9+0.32×1.9 10.15-10.75×0.4-5.7 5.8×(3.87-0.13)+4.2×3.74 32.52-(6+9.728÷3.2)×2.5 [(7.1-5.6)×0.9-1.15] ÷2.5 5.4÷[2.6×(3.7-2.9)+0.62] 12×6÷(12-7.2)-6 12×6÷7.2-6 33.02-(148.4-90.85)÷2.5 (25%-695%120-36×4÷18+35 (58+37)÷(64-9×5) (6.8-6.8×0.55)÷8.5 0.12× 4.8÷0.12×4.8 (3.2×1.5+2.5)÷1.6 6-1.6÷4= 5.38+7.85-5.37= 7.2÷0.8-1.2×5= 6-1.19×3-0.43= 6.5×(4.8-1.2×4)=
我从网上找来的,希望把分给我.

1年前

4

韩日 幼苗

共回答了1个问题 举报

要答案的吗?我还是不拿答案给你吧,最好让孩子自己做:
99×45+23=?
12×4+7×5=?
(88-44)×12=?
16×5+(4+17)=?
25×4+(89-21)=?
(19+25)×2+18=?
14-7+6×3=?
19+1-8×2=?
1.45+15×6= 135
2.250÷5×8=400

1年前

2

moon20 幼苗

共回答了2个问题 举报

四年级数学速算与巧算例题讲解 -小学数学辅导网-四年级数学试卷
例2 某农场有10块麦田,每块的产量如下(单位:千克):
462,480,443,420,473,429,468,439,475,461。求平均每块麦田的产量。
选基准数为450,则
累计差=12+30-7-30+23-21+18-11+25+11
=50,
平均每块产量=450+50÷...

1年前

2

ss流浪客-888 幼苗

共回答了18个问题采纳率:94.4% 举报

120+90= 543-306= 300÷12=
120×5= 12+18+14= 62+160+38=
14×60= 203-80= 50×15×4=
175-56= 250×8= 420×20=
25+67+75= 4500÷300= 25×38=
54+97= 560÷40= 145+55=
46+49+51= 9100÷70= 1...

1年前

1

yinyao0115 幼苗

共回答了2个问题 举报

1.45+15×6= 135
2.250÷5×8=400
3.6×5÷2×4=60
4.30×3+8=98
5.400÷4+20×5= 200
6.10+12÷3+20=34
7.(80÷20+80)÷4=21
8.70+(100-10×5)=120
9.360÷40= 9
10.40×20= 800
11.80-25...

1年前

0

忘掉她 幼苗

共回答了3个问题 举报

找去

1年前

0
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