Question

find the sum.
244 + _____ = 327
_____ + 143 = 281

Explanation:

Step1: Solve for the first blank

We know that in an addition equation \(a + b = c\), we can find \(b\) by \(b = c - a\). Here, \(a = 244\) and \(c = 327\), so we calculate \(327 - 244\).
\(327 - 244 = 83\)

Step2: Solve for the second blank

Using the same addition - subtraction relationship \(a + b = c\), here \(b = 143\) and \(c = 281\), so we find \(a\) by \(a = c - b\).
\(281 - 143 = 138\)

Answer:

For the first equation, the number is \(83\); for the second equation, the number is \(138\)