Step by step
The question
Question: what number is 9 tens and 1 one?
9 tens 1 ones
1 Show it with blocks
A ten is 10 ones stuck together.
We count the tens, then the ones.
2 Write the number
In 91, the 9 is in the tens place.
The 1 is in the ones place.
So 9 tens and 1 one is 91.
9 tens 1 ones = 91
3 Check
9 tens is 90.
90 and 1 make 91.
Yes!
It works.
90 + 1 = 91
Let's look back.
First: show it with blocks.
Then: write the number.
Last: check.
Answer
9 tens 1 ones = 91