Lesson Steps:

Do colam addition so 34
78 +
4 + 8 =12 so put two
Under the 4 and eight
And put the 1 on the top of the 3
Like this
1
34
78 +
2

Now you add the 3 to the 7 =10 then you add one to ten=11 so you put 11 next to the 2 like this



1
34
78+
112
And that's how you get the answer

Answer:

The answer is 112

Grade: 4
Level: Primary
Subject: Math
Topic: Addition