Lesson: Adding Two-Digit Numbers on a Hundred Chart Mathematics • 1st Grade
In this lesson, we will learn how to add two-digit numbers using a hundred chart by adding tens and then ones.
50 people are going to a party. Then, 15 more people decide to go. How many people are going to the party? Find the number by using the chart to count.
There were 9 boys at a park. Then, 15 more boys came to the park to play. What is the total number of boys? Find the number by using the chart to count.
A class were asked to add 35 to 14.
Who got the correct answer?