The first grade classes are going on a field trip.
One class has 25 students.
The other class has 21 students.
How many first graders are going altogether?

Alex can walk to the park in 26 minutes.
It takes Charlie 15 minutes.
How much longer does it take Alex to walk to the park?

A ruler costs 34 cents.
Cassidy wants to buy 2 rulers.
How much will she pay?

Shelly has 21 marshmallows.
Trina has 8 more marshmallows than Shelley.
How many marshmallows does Trina have?

There are 28 frogs at the edge of the pond.
5 hop away.
How many frogs are left?