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11 덧셈 ② (몇십몇)+(몇십몇) 세로셈 연산
1 2 1 6 3 5 11 4 2
+ 2 4 + 6 1 + 2 0
4 5
➊ 1+4=5
➋ 2+2=4
2 5 2 7 4 0 12 1 4
+ 1 5 + 1 9 + 3 4
3 3 0 8 1 1 13 5 0
+ 4 0 + 2 6 + 3 1
4 2 3 9 6 0 14 1 2
+ 3 3 + 2 0 + 6 4
5 10 15
7 4 4 3 4 2
+ 1 0 + 3 2 + 5 7
Day 11•2. 덧셈과 뺄셈(1) _ 35
