Question

how much more does lou need to add on?
$48 + 34$
$= 48 + (2 + \square)$

Explanation:

Step1: Analyze 34's composition

We know that \(34 = 2 + 32\) (since we need to split 34 such that one part is 2 to make 48 + 2 a round number, and find the other part).

Step2: Verify the equation

Given \(48+34 = 48+(2 + \square)\), substituting 32 into the square: \(48+(2 + 32)=48 + 34\) (by associative property of addition), which holds true.

Answer:

32