Sample questions Class 4, medium level. Your worksheet will have new questions. 1.4,137 + 1,936 = ___4137+19362.5,859 + 2,881 = ___5859+28813.1,996 + 2,945 = ___2945+19964.3,183 + 3,448 = ___3448+31835.1,372 + 4,734 = ___4734+13726.3,862 + 4,676 = ___4676+38627.5,378 + 1,922 = ___5378+19228.6,866 + 2,624 = ___6866+2624