Addition or Subtraction of Whole Numbers

Step 1:

Number of baseball cards John had = 237

Number of cards John got more = 105

Step 2:

Number of cards John has now = 237 + 105 = 342

Word problem 2 (on subtraction):

Yesterday, Boris had 345 game cards. Today he gave 132 away. How many cards does Boris have left?

Step 1:

Number of game cards Boris had = 345

Number of cards Boris gave away = 132

Step 2:

Number of cards remaining with Boris = 345 – 132 = 213