Question
Using Models to Understand Addition
Notice that the 2 ones and the 7 ones make 9 ____
And notice that the 2 tens and the 1 ten combine to make 3 tens, which is the same as _____
So now we have 3 tens and 9 ones, which is the same as 30 plus 9, and that gives us our sum of _____
Notice that the 2 ones and the 7 ones make 9 ____
And notice that the 2 tens and the 1 ten combine to make 3 tens, which is the same as _____
So now we have 3 tens and 9 ones, which is the same as 30 plus 9, and that gives us our sum of _____
Answers
GPT-4o mini
When we notice that the 2 ones and the 7 ones make 9 **ones**, we can clearly see how they combine.
Next, when we look at the 2 tens and the 1 ten, they combine to make 3 tens, which is the same as **30**.
So now, putting it all together, we have 3 tens (30) and 9 ones (9). This is the same as 30 plus 9, and that gives us our sum of **39**.
So, your final statement would be:
Notice that the 2 ones and the 7 ones make 9 ones. And notice that the 2 tens and the 1 ten combine to make 3 tens, which is the same as 30. So now we have 3 tens and 9 ones, which is the same as 30 plus 9, and that gives us our sum of 39.
Next, when we look at the 2 tens and the 1 ten, they combine to make 3 tens, which is the same as **30**.
So now, putting it all together, we have 3 tens (30) and 9 ones (9). This is the same as 30 plus 9, and that gives us our sum of **39**.
So, your final statement would be:
Notice that the 2 ones and the 7 ones make 9 ones. And notice that the 2 tens and the 1 ten combine to make 3 tens, which is the same as 30. So now we have 3 tens and 9 ones, which is the same as 30 plus 9, and that gives us our sum of 39.