How much is 28 + 28?. How much is 9 x 9?. How much is 134 + 72?. How much is 55-18?. How much is 3 x 18?. How much is 56 / 8?. How much is 72 / 8?. How much is 37 + 38?. How much is 48 - 13?. How much is 250 / 25?. How much is 7 x 7? . How much is 24 / 8?. How much is 50 / 5? . How much is 54 / 6? . How much is 47 + 27?. How much is 48 + 33?. How much is 66 + 39?. How much is 34 + 57?.