Worksheet: Adding Two-Digit Numbers on a Hundred Chart

In this worksheet, we will practice adding two-digit numbers using a hundred chart by adding tens and then ones.

Q1:

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.

40414243444546474849
50515253545556575859
60616263646566676869

Q2:

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.

12345678910
11121314151617181920
21222324252627282930

Q3:

A class were asked to add 35 to 14.

Who got the correct answer?

  • A
  • B

Q4:

Victoria knows how to use a hundred square to add.

How many tens did she add?

How many ones did she add?

What is the missing number?

Q5:

Look at how Olivia adds numbers.

Use the hundred square to find the answers.

15+43=.

45+34=.

27+45=.

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