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.

40 41 42 43 44 45 46 47 48 49
5 0 51 52 53 54 55 56 57 58 59
60 61 62 63 64 65 66 67 68 69

Q2:

Find the sum of 14+5.

Start at 14 and count on 5. Use the 100 square to help you.

Q3:

Find the sum of 33+8.

Start at 33 and count on 8. Use the 100 square to help you.

Q4:

Find the sum of 67+5. Use the 100 square to help you.

Q5:

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.

1 2 3 4 5 6 7 8 9 10
11 12 13 14 15 16 17 18 19 20
21 22 23 24 25 26 27 28 29 30

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