Question

求四十道有理数加减法混合运算，四个数，有十道小数的，有十道分数的

Answer 1

2.74+0.83+1.17+0.26=
2.5+3.2-(0.8-0.72)=
0.24+0.75-(9.8-6.8)=
0.52+1.2+0.79-0.6=
0.608+9.72-8.84+0.905=
9.72-8.84+12.46-5.87=
0.63+18.9+2.37+5.91=
32.73+(9-6)+(0.9-0.6)=
3.4+[3.7-(2.1+1)]=
1.56+394)+(3.44+106)=

Answer 2

今天我也给儿子出题，是用excel解决的
假设题目是A+B=C ，两位小数点，那第一列为ROUND(RAND()*100,2)，第二列为字符'+',第三列还是ROUND(RAND()*100,2)，第四列为字符'=',如此复制格式，想要多少题 都可以 ，其它类型的，类推即可，附25道二位小数加法
8.92 + 71.49 =
68.34 + 90.22 =
81.66 + 40.24 =
29.01 + 67.81 =
88.60 + 35.95 =
28.45 + 62.77 =
68.63 + 57.93 =
83.16 + 70.67 =
82.87 + 57.53 =
3.99 + 57.43 =
10.03 + 49.61 =
95.22 + 14.68 =
64.65 + 53.13 =
13.66 + 44.76 =
29.65 + 81.02 =
8.28 + 8.21 =
41.04 + 80.72 =
71.57 + 92.72 =
47.97 + 4.15 =
16.20 + 85.33 =
59.05 + 23.47 =
10.06 + 81.08 =
54.71 + 8.56 =
22.20 + 19.90 =
94.15 + 16.84 =

Answer 3

zaifa

Answer 4

童鞋，好多啊