Use any strategy to solve the following equations.

30 + 28 = 43 - 20 =

50 + 30 = 53 + 8 =

22 + 5 = 40 - 20 =

Jose has 28 counters. His teacher gave him 20 more counters. How many counters does Jose have now?

There are 28 pencils on top of the table. Ten pencils fall off the table. How many pencils are there left on the table?

Mrs. Deary has 53 books in her library. Mrs. Cascio borrows 20 books for her class. How many books does Mrs. Deary have left in her library?