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Addition
Subtraction
100

1+x=13424

What is x = 13424

100

x-17=12

What is x = 17

200

34+x=39

What is x = 5

200

x-15=-5

What is x = -5

300

308,319+x=705,987

What is x = 397,668

300

x-1029334=101989

What is x= 1131323

400

1.232 + x =2.321

What is x = 1.089

400

x + 62 = 90

What is x = 28

500

.5 + y = 4

What is y = 3.5

500

k + 85 = 111

 What is k = 26