Balance Addition Equations: Up To Three Digits

Question 1
Which number makes the equation true?

670 + 5 =  ?  + 42 613659639633

Question 2
Which number makes the equation true?

612 +  ?  = 816 + 20 228224238234

Question 3
Which number makes the equation true?

143 +  ?  = 196 + 50 100113105103

Question 4
Which number makes the equation true?

  ?  + 150 = 117 + 420 387385367368

Question 5
Which number makes the equation true?

412 + 65 =  ?  + 362 112115117119

Question 6
Which number makes the equation true?

347 + 84 = 240 +  ?   191181189193

Question 7
Which number makes the equation true?

378 + 36 =  ?  + 290 134144124154

Question 8
Which number makes the equation true?

257 +  ?  = 340 + 87 167160170177

Question 9
Which number makes the equation true?

  ?  + 413 = 180 + 365 132142131143

Question 10
Which number makes the equation true?

216 +  ?  = 172 + 120 67707376