4
4
Four quarters equal one dollar.
40
One hundred US cents equals one US dollar.
25
2
One dollar. That's why it's called a dollar. One dollar is equal to 100 pennies, 20 nickles, ten dimes or four quaters.
2
Ten.
400.
There are 40 quarters in 10 dollars. Since each dollar is equal to 4 quarters, you can calculate this by multiplying 10 dollars by 4 quarters per dollar. Therefore, (10 \times 4 = 40) quarters.
500 pennies, 100 nickles, 50 dimes, 20 quaters