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

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
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

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
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）=
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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...

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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= 55
12.70+45=115
13.90×2= 180
14.16×6= 96
15.300×6= 1800
16.540÷9=60
17.30×20= 600
18.400÷4= 100
19.350-80= 270
20.160+70=230
21.18-64÷8= 10
22.42÷6+20=27
23.40-5×7= 5
24.80+60÷3=100
25.41+18÷2= 50
26.75-11×5= 20
27.42+7-29= 20
28.5600÷80=70
29.25×16= 400
30.120×25= 3000
31.36×11= 396
32.1025÷25=41
33.336+70= 406
34.25×9×4= 900
35.200-33×3= 101
36.3020-1010=2010
37.12×50= 600
38.25×8= 200
39.23×11= 253
40.125÷25=5
41.4200-2200=2000
42.220+80= 300
43.20×8×5= 800
44.600-3×200=0
45.20+20÷2= 30
46.35-25÷5= 30
47.36+8-40= 4
48.2800÷40=70
49.98÷14 = 7
50.96÷24 = 4
51.56÷14 =4
52.65÷13 = 5
53.75÷15 = 5
54.120÷24 =5
55.200÷25 = 8
56.800÷16 = 50
57.840÷21 =40
58.560÷14 = 40
59.390÷13 = 30
60.600÷15 =40
61.72÷24 = 3
62.85÷17 = 5
63.90÷15 =6
64.96÷16 = 6
65.78÷26 = 4
66.51÷17 =3
67.80÷40 = 2
68.100÷20 = 5
69.100÷4 =25
70.240÷40 = 6
71.920÷4 = 230
72.300÷60=5
73.64÷2 = 32
74.64÷4 = 16
75.50÷5 =10
76.60÷8 = 7.5
77.96÷4 = 24
78.90÷6 =15
79.400+80 = 480
80.400-80 = 320
81.40×80 =3200
82.400÷80 = 5
83.48÷16 = 3
84.96÷24 =4
85.160×5= 800
86.4×250= 1000
87.0×518= 0
88.10×76= 760
89.36×10=360
90.15×6= 90
91.24×3= 72
92.5×18= 90
93.26×4= 74
94.7×15=105
95.32×30= 960
96.40×15= 600
97.60×12= 720
98.23×30= 690
99.30×50=1500
100.5×700=350
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= 55
12.70+45=115
13.90×2= 180
14.16×6= 96
15.300×6= 1800
16.540÷9=60
17.30×20= 600
18.400÷4= 100
19.350-80= 270
20.160+70=230
21.18-64÷8= 10
22.42÷6+20=27
23.40-5×7= 5
24.80+60÷3=100
25.41+18÷2= 50
26.75-11×5= 20
27.42+7-29= 20
28.5600÷80=70
29.25×16= 400
30.120×25= 3000
31.36×11= 396
32.1025÷25=41
33.336+70= 406
34.25×9×4= 900
35.200-33×3= 101
36.3020-1010=2010
37.12×50= 600
38.25×8= 200
39.23×11= 253
40.125÷25=5
41.4200-2200=2000
42.220+80= 300
43.20×8×5= 800
44.600-3×200=0
45.20+20÷2= 30
46.35-25÷5= 30
47.36+8-40= 4
48.2800÷40=70
49.98÷14 = 7
50.96÷24 = 4
51.56÷14 =4
52.65÷13 = 5
53.75÷15 = 5
54.120÷24 =5
55.200÷25 = 8
56.800÷16 = 50
57.840÷21 =40
58.560÷14 = 40
59.390÷13 = 30
60.600÷15 =40
61.72÷24 = 3
62.85÷17 = 5
63.90÷15 =6
64.96÷16 = 6
65.78÷26 = 4
66.51÷17 =3
67.80÷40 = 2
68.100÷20 = 5
69.100÷4 =25
70.240÷40 = 6
71.920÷4 = 230
72.300÷60=5
73.64÷2 = 32
74.64÷4 = 16
75.50÷5 =10
76.60÷8 = 7.5
77.96÷4 = 24
78.90÷6 =15
79.400+80 = 480
80.400-80 = 320
81.40×80 =3200
82.400÷80 = 5
83.48÷16 = 3
84.96÷24 =4
85.160×5= 800
86.4×250= 1000
87.0×518= 0
88.10×76= 760
89.36×10=360
90.15×6= 90
91.24×3= 72
92.5×18= 90
93.26×4= 74
94.7×15=105
95.32×30= 960
96.40×15= 600
97.60×12= 720
98.23×30= 690
99.30×50=1500
100.5×700=350
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= 55
12.70+45=115
13.90×2= 180
14.16×6= 96
15.300×6= 1800
16.540÷9=60
17.30×20= 600
18.400÷4= 100
19.350-80= 270
20.160+70=230
21.18-64÷8= 10
22.42÷6+20=27
23.40-5×7= 5
24.80+60÷3=100
25.41+18÷2= 50
26.75-11×5= 20
27.42+7-29= 20
28.5600÷80=70
29.25×16= 400
30.120×25= 3000
31.36×11= 396
32.1025÷25=41
33.336+70= 406
34.25×9×4= 900
35.200-33×3= 101
36.3020-1010=2010
37.12×50= 600
38.25×8= 200
39.23×11= 253
40.125÷25=5
41.4200-2200=2000
42.220+80= 300
43.20×8×5= 800
44.600-3×200=0
45.20+20÷2= 30
46.35-25÷5= 30
47.36+8-40= 4
48.2800÷40=70
49.98÷14 = 7
50.96÷24 = 4
51.56÷14 =4
52.65÷13 = 5
53.75÷15 = 5
54.120÷24 =5
55.200÷25 = 8
56.800÷16 = 50
57.840÷21 =40
58.560÷14 = 40
59.390÷13 = 30
60.600÷15 =40
61.72÷24 = 3
62.85÷17 = 5
63.90÷15 =6
64.96÷16 = 6
65.78÷26 = 4
66.51÷17 =3
67.80÷40 = 2
68.100÷20 = 5
69.100÷4 =25
70.240÷40 = 6
71.920÷4 = 230
72.300÷60=5
73.64÷2 = 32
74.64÷4 = 16
75.50÷5 =10
76.60÷8 = 7.5
77.96÷4 = 24
78.90÷6 =15
79.400+80 = 480
80.400-80 = 320
81.40×80 =3200
82.400÷80 = 5
83.48÷16 = 3
84.96÷24 =4
85.160×5= 800
86.4×250= 1000
87.0×518= 0
88.10×76= 760
89.36×10=360
90.15×6= 90
91.24×3= 72
92.5×18= 90
93.26×4= 74
94.7×15=105
95.32×30= 960
96.40×15= 600
97.60×12= 720
98.23×30= 690
99.30×50=1500
100.5×700=350

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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

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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
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= 55
12.70+45=115
13.90×2= 180
14.16×6= 96
15.300×6= 1800
16.540÷9=60
17.30×20= 600
18.400÷4= 100
19.350-80= 270
20.160+70=230
21.18-64÷8= 10
22.42÷6+20=27
23.40-5×7= 5
24.80+60÷3=100
25.41+18÷2= 50
26.75-11×5= 20
27.42+7-29= 20
28.5600÷80=70
29.25×16= 400
30.120×25= 3000
31.36×11= 396
32.1025÷25=41
33.336+70= 406
34.25×9×4= 900
35.200-33×3= 101
36.3020-1010=2010
37.12×50= 600
38.25×8= 200
39.23×11= 253
40.125÷25=5
41.4200-2200=2000
42.220+80= 300
43.20×8×5= 800
44.600-3×200=0
45.20+20÷2= 30
46.35-25÷5= 30
47.36+8-40= 4
48.2800÷40=70
49.98÷14 = 7
50.96÷24 = 4
51.56÷14 =4
52.65÷13 = 5
53.75÷15 = 5
54.120÷24 =5
55.200÷25 = 8
56.800÷16 = 50
57.840÷21 =40
58.560÷14 = 40
59.390÷13 = 30
60.600÷15 =40
61.72÷24 = 3
62.85÷17 = 5
63.90÷15 =6
64.96÷16 = 6
65.78÷26 = 4
66.51÷17 =3
67.80÷40 = 2
68.100÷20 = 5
69.100÷4 =25
70.240÷40 = 6
71.920÷4 = 230
72.300÷60=5
73.64÷2 = 32
74.64÷4 = 16
75.50÷5 =10
76.60÷8 = 7.5
77.96÷4 = 24
78.90÷6 =15
79.400+80 = 480
80.400-80 = 320
81.40×80 =3200
82.400÷80 = 5
83.48÷16 = 3
84.96÷24 =4
85.160×5= 800
86.4×250= 1000
87.0×518= 0
88.10×76= 760
89.36×10=360
90.15×6= 90
91.24×3= 72
92.5×18= 90
93.26×4= 74
94.7×15=105
95.32×30= 960
96.40×15= 600
97.60×12= 720
98.23×30= 690
99.30×50=1500
100.5×700=350
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= 55
12.70+45=115
13.90×2= 180
14.16×6= 96
15.300×6= 1800
16.540÷9=60
17.30×20= 600
18.400÷4= 100
19.350-80= 270
20.160+70=230
21.18-64÷8= 10
22.42÷6+20=27
23.40-5×7= 5
24.80+60÷3=100
25.41+18÷2= 50
26.75-11×5= 20
27.42+7-29= 20
28.5600÷80=70
29.25×16= 400
30.120×25= 3000
31.36×11= 396
32.1025÷25=41
33.336+70= 406
34.25×9×4= 900
35.200-33×3= 101
36.3020-1010=2010
37.12×50= 600
38.25×8= 200
39.23×11= 253
40.125÷25=5
41.4200-2200=2000
42.220+80= 300
43.20×8×5= 800
44.600-3×200=0
45.20+20÷2= 30
46.35-25÷5= 30
47.36+8-40= 4
48.2800÷40=70
49.98÷14 = 7
50.96÷24 = 4
51.56÷14 =4
52.65÷13 = 5
53.75÷15 = 5
54.120÷24 =5
55.200÷25 = 8
56.800÷16 = 50
57.840÷21 =40
58.560÷14 = 40
59.390÷13 = 30
60.600÷15 =40
61.72÷24 = 3
62.85÷17 = 5
63.90÷15 =6
64.96÷16 = 6
65.78÷26 = 4
66.51÷17 =3
67.80÷40 = 2
68.100÷20 = 5
69.100÷4 =25
70.240÷40 = 6
71.920÷4 = 230
72.300÷60=5
73.64÷2 = 32
74.64÷4 = 16
75.50÷5 =10
76.60÷8 = 7.5
77.96÷4 = 24
78.90÷6 =15
79.400+80 = 480
80.400-80 = 320
81.40×80 =3200
82.400÷80 = 5
83.48÷16 = 3
84.96÷24 =4
85.160×5= 800
86.4×250= 1000
87.0×518= 0
88.10×76= 760
89.36×10=360
90.15×6= 90
91.24×3= 72
92.5×18= 90
93.26×4= 74
94.7×15=105
95.32×30= 960
96.40×15= 600
97.60×12= 720
98.23×30= 690
99.30×50=1500
100.5×700=350
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= 55
12.70+45=115
13.90×2= 180
14.16×6= 96
15.300×6= 1800
16.540÷9=60
17.30×20= 600
18.400÷4= 100
19.350-80= 270
20.160+70=230
21.18-64÷8= 10
22.42÷6+20=27
23.40-5×7= 5
24.80+60÷3=100
25.41+18÷2= 50
26.75-11×5= 20
27.42+7-29= 20
28.5600÷80=70
29.25×16= 400
30.120×25= 3000
31.36×11= 396
32.1025÷25=41
33.336+70= 406
34.25×9×4= 900
35.200-33×3= 101
36.3020-1010=2010
37.12×50= 600
38.25×8= 200
39.23×11= 253
40.125÷25=5
41.4200-2200=2000
42.220+80= 300
43.20×8×5= 800
44.600-3×200=0
45.20+20÷2= 30
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