Video: Using a Hundred Square to Add within 100, Including a Two-Digit Number and a One-Digit Number

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

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Video Transcript

Find the sum of 33 and eight. Start at 33 and count on eight. Use the 100 square to help you.

We’re being asked to find the sum of 33 and eight. This means we need to add these two numbers together and find their total. And the question tells us to use the 100 square to count on. We need to start at number 33 which is already circled on the 100 square. And then, we need to count forward eight to help us find the sum.

So let’s start at 33 and count forward eight. One, two, three, four, five, six, seven, eight. The sum of 33 and eight is 41. We found the sum using the 100 square to help. We started at 33 and counted on eight. 33 and eight is 41.

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