Lời giải chi tiết:
9 + 1 = 10 | 8 + 2 = 10 | 7 + 3 = 10 | 6 + 4 = 10 |
1 + 9 = 10 | 2 + 8 = 10 | 3 + 7 = 10 | 4 + 6 = 10 |
9 – 1 = 8 | 8 – 2 = 6 | 7 – 3 = 4 | 6 – 4 = 2 |
9 – 9 = 0 | 8 – 8 = 0 | 7 – 7 = 0 | 6 – 6 = 0 |
1+5+1+=?
1+3+8=?
2+4+9=?
9+1=10
1+9=10
9-1=8
9-9=0
8+2=10
2+8=10
8-2=6
8-8=0
7+3=10
3+7=10
7-3=4
7-7=0
6+4=10
4+6=10
6-4=2
6-6=0
=10 =10
\
=10
=8
=0
9+1=10 8+2=10 7+3=10 6+4=10
1+9=10 2+8=10 3+7=10 4+6=10
9-1=8 8-2=6 7-3=4 6-4=2
9-9=0 8-8=0 7-7=0 6-6=0