What is the product in standard form?

Paul is thinking of a 4-digit whole number in which all of the digits are the same. The value of the digit in the hundreds place is 300. What is the number?

Which number has a digit in the tens place 100 times greater than the digit in the tenths place? 70.65;    7,844.34;     125.54;      919.15

The speeds in pages per minute (ppm) for 4 printers are: 7.105 ppm,    7.221 ppm,    7.4 ppm,    and 7.08 ppm. Which printer prints the most paper in one minute?

The average length of an American alligator is 4.39 meters. What is the length rounded to the nearest tenth?

Mr. Johnson is an electrician and has a length of wire that is 32.7 meters long. He has another length of wire that is 15.33 meters long. How much longer is one wire than the other?

Round 0.545 to the nearest tenth.

A dollhouse is 15.15 square feet downstairs and 6.5 square feet upstairs. What is the total area in the dollhouse?

Round 496.533 to the nearest whole number.

Sally says that in the number 6,367, the first 6 is 10 times greater than the other 6. Is she correct? Why or why not?

For her birthday, Grace received $20 from her aunt, $15 from her friend, and $30 from her grandmother. She bought an e-book for $10.85. How much birthday money does Grace have left?

What is an equivalent decimal for 9.9?