Sample questions Grade 4, medium level. Your worksheet will have new questions. 1.1,428 + 2,745 = ___2745+14282.7,667 + 1,633 = ___7667+16333.5,538 + 2,599 = ___5538+25994.5,675 + 2,808 = ___5675+28085.2,627 + 3,523 = ___3523+26276.1,880 + 3,678 = ___3678+18807.1,836 + 7,239 = ___7239+18368.6,917 + 1,138 = ___6917+1138