Solve for the Missing Addend: 33 + __ = 68 Using Number Line

To solve this problem, follow these steps:

• Step 1: Calculate the difference from 33 to a rounded next number which is 40. The first jump is $40 - 33 = 7$.
• Step 2: From 40, calculate the difference to 68. The second jump is $68 - 40 = 28$.
• Step 3: Add the values of both jumps to find the total missing number.

Now, let's work through each step:
Step 1: From 33 to 40 is a jump of 7.
Step 2: From 40 to 68 is a jump of 28.
Step 3: The total added amount is $7 + 28 = 35$.

Therefore, the solution to the problem is $35$.