打印20以内的算式
随机生成50道20以内的加法算式
按照每行五个算式输出
加数020 还是指 和020，以下两种情况都有了：
import random
for i in range(10):
for j in range(5):
t1 , t2 = random.randint(0,20), random.randint(0,20)
print(f'{t1:<3}+ {t2:<3}= {t1+t2:<5}', end='')
print()
'''
14 + 14 = 28 19 + 0 = 19 0 + 14 = 14 10 + 18 = 28 11 + 15 = 26
1 + 19 = 20 19 + 1 = 20 17 + 19 = 36 9 + 0 = 9 0 + 4 = 4
11 + 11 = 22 2 + 13 = 15 5 + 4 = 9 14 + 2 = 16 4 + 3 = 7
15 + 14 = 29 3 + 4 = 7 2 + 2 = 4 6 + 5 = 11 4 + 7 = 11
4 + 9 = 13 8 + 7 = 15 8 + 17 = 25 9 + 4 = 13 7 + 2 = 9
20 + 16 = 36 1 + 0 = 1 2 + 2 = 4 10 + 14 = 24 1 + 12 = 13
6 + 8 = 14 5 + 18 = 23 0 + 19 = 19 11 + 19 = 30 11 + 5 = 16
6 + 6 = 12 11 + 16 = 27 8 + 16 = 24 3 + 15 = 18 3 + 8 = 11
20 + 3 = 23 13 + 15 = 28 1 + 5 = 6 12 + 17 = 29 1 + 8 = 9
0 + 10 = 10 5 + 0 = 5 7 + 18 = 25 13 + 1 = 14 1 + 12 = 13
'''
import random
for i in range(10):
for j in range(5):
t1 , t2 = random.randint(0,20), random.randint(0,20)
print(f'{t1:<3}+ {t2-t1:<3}= {t2:<5}', end='')
print()
'''
3 + 0 = 3 7 + 4 = 11 9 + 5 = 14 15 + 1 = 16 12 + -4 = 8
15 + 0 = 15 12 + -1 = 11 15 + -4 = 11 8 + -2 = 6 7 + -5 = 2
9 + 1 = 10 0 + 1 = 1 20 + -14= 6 0 + 2 = 2 18 + -11= 7
17 + -10= 7 13 + 0 = 13 12 + 7 = 19 10 + -4 = 6 15 + -14= 1
8 + -8 = 0 6 + -6 = 0 9 + 1 = 10 18 + -9 = 9 5 + 13 = 18
11 + -3 = 8 14 + -9 = 5 17 + -5 = 12 10 + 0 = 10 9 + -2 = 7
8 + 8 = 16 12 + -8 = 4 2 + 3 = 5 11 + 7 = 18 9 + -8 = 1
12 + 5 = 17 20 + -15= 5 9 + 10 = 19 6 + -3 = 3 15 + 0 = 15
1 + 8 = 9 19 + -7 = 12 17 + -15= 2 2 + 10 = 12 8 + 11 = 19
11 + 4 = 15 19 + -11= 8 15 + -5 = 10 6 + -2 = 4 9 + 9 = 18
'''
import random
for _ in range(1, 51):
v = random.randint(5,20)
t = random.randint(2, v)
print(f"{t:<2}+ {v - t:<2}= {v:<2}", end = '\n' if _ % 5 == 0 else ' ')
for i in range(5):
for j in range(10):
s=i+j
print(str(i)+'+'+str(j)+'='+str(s),end=' ')
if((j+1)%5==0):
print()