Juan, Barb, and Tom have bug collections. Juan has 28 bugs. Barb has 35 bugs. Tom has 43 bugs. Which is closest to the total number of bugs in the three collections?

An elementary school has 350 third-graders and 290 fourth-graders. On field day, 10 third-graders and 8 fourth-graders were absent. How many third and fourth-graders were at school on field day?

The Smith family went on vacation. The first day they traveled 256 miles, the second day they traveled 578 miles, and the third day they traveled 98 miles. About how many miles did they travel in all?

Mark’s class is collecting rock samples for a science project. They need 100 samples. Mark brought in 2 bags with 12 rocks in each. Taylor brought in 3 boxes with 7 rocks in each. How many more rocks do they still need?

2,363 zebra mussels ride into Lake Michigan on the bottom of a ship. They find lots of food and no predators, so their population grows. A year later, there are 6,542 more zebra mussels in the lake. How many zebra mussels are there now?

Hillsdale had 9,374 people before it became a stop on the railroad. Now, there are 3,459 more people living there. How many people live in Hillsdale now?

A construction company is repaving a damaged road. So far, they have repaved a total of 6,441 centimeters of the road. Today, they repaved 261 centimeters of the road. How many centimeters of the road had they repaved before today?

An oil pipe in the sea broke. Before engineers started to fix the pipe, 1,300 gallons of oil leaked into the water. A total of 9,612 gallons of oil leaked before the pipe was fixed. How many gallons of oil leaked while the engineers were fixing the pipe?

There are 12 basketballs in each bin. How many basketballs are in 4 bins?