Matching Pairs SEVENTH GRADE - MATHSOnline version Matching exercise. by Laura Andrea Pineda Uribe 1 -5 + - ( FIVE * ONE ) = 2 ONE / SEVEN + ONE / FIVE = 3 2 . ( 1 + 2 x ) = TEN 4 7 X = TWENTY EIGHT 5 TWELVE + ( FIFTY THREE - FORTY EIGHT) = - TEN TWELVE / THIRTY FIVE X = FOUR X = TWO SEVENTEEN