Find the difference.
623 − 282 = ____
Find the sum.
394 + 427 = ____
Find the difference.
503 − 276 = ____
Find the total.
678 + 323 = ____
Jennifer has two pieces of stained glass like the ones shown.
What is the perimeter of the both rectangle and square piece of glass in centimeters?
What is the value of the coins?