When a Column Gets Too Big: Author's Purpose

Read about adding with regrouping, then work out why the author wrote it.

Story Brief #403

Regrouping addition helps us solve problems when the numbers we add are too big for a single column.

🎯 Your mission

Read it. Think it. Answer it.

⚡ The twist

Slow down. The first answer that pops up isn't always the right one.

📖 1 of 2

Regrouping addition helps us solve problems when the numbers we add are too big for a single column. When we add two numbers, like 27 and 45, we start from the right side. First, we add 7 and 5, which equals 12.

📖 2 of 2

Since 12 is more than 10, we write down 2 and carry over 1 to the next column. Then we add 2, 4, and the 1 we carried over, which equals 7. So, 27 plus 45 equals 72!

Question 1

1 of 2

Why did the author most likely write this passage?

How sure are you going to be?😐 maybe

Question 2

2 of 2

Which sentence did the author write in this passage?

How sure are you going to be?😐 maybe

Nice work!

You got 0 of 2 right.

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When a Column Gets Too Big: Author's Purpose

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