Math Practice Material

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Name:_____________________________
 
X + 49 = Y
Y - 49 = X

X=
Y=






X + 28 = Y
Y + X = 40

X=
Y=






40 + X = Y
Y + X = 140

X=
Y=






X + 28 = Y
Y - 28 = X

X=
Y=






X + 35 = Y
Y + X = 99

X=
Y=






23 + X = Y
Y + X = 73

X=
Y=






X + 1 = Y
Y - 1 = X

X=
Y=






X + 39 = Y
Y + X = 115

X=
Y=






20 + X = Y
Y + X = 116

X=
Y=










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