Addition and Subtraction

Name (First and Last)

A school organized a fundraiser and raised 12,345 dollars on the first day. On the second day, they raised another 9,876 dollars. How much money did they raise in total over the two days?

• 20,000
• 22,161
• 21,161
• 23,000

A city had a population of 45,678 residents last year. This year, the population increased by 3,245 residents. What is the new population of the city?

A library had 50,000 books at the beginning of the year. During a donation drive, they added 7,890 new books. However, 2,345 books were damaged and had to be removed. How many books does the library have now?

A factory produced 78,910 units of a product in a month. Due to a defect, 5,678 units were returned. How many units did the factory successfully sell?

A bookstore sold 23,456 books in January and 19,832 books in February. How many books did they sell in those two months combined?

Fill in the blank. 889,028 is _______ 899,028

• greater than
• less than
• equal to

Fill in the blank. 1,939,002 is _________1,393,005

• greater than
• less than
• equal to

Write the number 12 ten thousands, 8 thousands, 14 hundreds, 7 ones in standard form.

Round 39,477 to the nearest thousand.