Round 8,234 to the nearest ten.

If 5,829 is added to an unknown number, the sum is 9,045. What is the unknown number?

Round 1,598 to the nearest ten.

Daniel has been saving money for three months. He saved $486 in the first month. He saved $391 in the second month. He saved $275 in the third month.Daniel wants to save a total of 3,000. How much more does he need?

Ms. Muñoz gave clues to find a mystery number. There is a 5 in the thousands and ones places. There is a 3 in the ten thousands and hundred places. There is a 2 in the tens place. The other digit is a 0. What is the mystery number?

Round 2,679 to the nearest ten.

Round 3,599 to the nearest ten.

Answer the following:

Ms. Muñoz gave clues to find a mystery number. There is a 8 in the thousands and tens places. There is a 1 in the hundred thousands and hundred places. There is a 9 in the ones place. The other digit is a 0. What is the mystery number?

If 2,345 is added to an unknown number, the sum is 5,783. What is the unknown number?

Answer the following:

Round 5,975 to the nearest ten.