Solve the Equation: Finding the Missing Number in 74-□=38

Let's solve the problem step by step.

The problem is to find the number to subtract from 74 so that the result is 38, using two jumps on a number line.

We start at 74 and need to end at 38. To do this efficiently and using the number line strategy, we break it down into two jumps:

• First, consider an easy first jump to a round number from 74. The nearest round number less than 74 is 70.
  This first jump is from 74 to 70, which is a jump of $74 - 70 = 4$.
• Now, from 70, we need to reach the desired 38. Calculate the second jump: $70 - 38 = 32$.

By making these two jumps, we have:

• First jump: 74 to 70, subtracting 4.
• Second jump: 70 to 38, subtracting 32.

Adding the two jumps: $4 + 32 = 36$.

Therefore, the solution to $74 - \Box = 38$ is $\Box = 36$.

The correct choice from the options provided is 36.

In conclusion, the missing number in the subtraction is $\Box = 36$.