Worksheet: Adding Ones to Three-Digit Numbers

In this worksheet, we will practice modeling adding a one-digit number to a three-digit number and investigate which digits in the number change.

Q1:

Olivia has broken apart a number to help her add.

Add the ones.

3+5=.

Add the ones to 410 to find the total.

413+5=.

Q2:

Find the total by first adding the ones.

Q3:

Find the total by first adding the ones.

Q4:

Look at how Anthony broke apart a number to add.

Add the ones.

4+3=.

Add to find the total.

Q5:

Matthew spent $213 shopping, and when he came back home, he had only $8. How much did he have before he went shopping?

Q6:

Find the result of 374+5.

Q7:

Find the result of 213+6.

Q8:

Use the following number line to find 742+2.

Q9:

Find the result using the following place value table:

Q10:

Anthony has 343 stamps. His friend Madison gives him 5 more stamps. How many stamps does Anthony have now?

Nagwa uses cookies to ensure you get the best experience on our website. Learn more about our Privacy Policy.