Question

problem solving real world
choose a way to solve. draw or write to explain.

1. multi-step lev has 9 tens. jim has 1 ten. they put all their tens together. dawn puts 9 ones with the tens. what number did they make?

____ hundred __ tens ____ ones
____ + __ + ____
______

Explanation:

Count the total number of tens

We start by finding the total number of tens. Lev has \(9\) tens and Jim has \(1\) ten.

$$ 9\text{ tens} + 1\text{ ten} = 10\text{ tens} $$

Convert tens to hundreds and tens

We group the \(10\) tens into hundreds and tens. Since \(10\) tens make \(1\) hundred, we have:

$$ 10\text{ tens} = 1\text{ hundred } 0\text{ tens} $$

Add the ones

Dawn puts \(9\) ones with the tens. We now have:

$$ 1\text{ hundred } 0\text{ tens } 9\text{ ones} $$

Write the expanded form

We write the value of each place value position:

$$ 100 + 0 + 9 $$

Find the final number

We add the values together to find the final number:

$$ 100 + 0 + 9 = 109 $$

Answer:

Choose a way to solve. Draw or write to explain.

1. Multi-Step Lev has 9 tens. Jim has 1 ten. They put all their tens together. Dawn puts 9 ones with the tens. What number did they make?

<blank>1</blank> hundred <blank>0</blank> tens <blank>9</blank> ones
<blank>100</blank> + <blank>0</blank> + <blank>9</blank>
<blank>109</blank>