Posted on October 5, 2017 by admin Adding 10, 15, 20, 25, …, Practice 1 20 + 10 25 + 45 45 + 40 30 + 25 35 + 15 30 + 30 10 + 15 15 + 5 35 + 35 20 + 30
Posted on October 5, 2017 by admin Carrying, Practice 3 37 + 44 54 + 38 26 + 48 41 + 79 17 + 39 22 + 46 56 + 39 79 + 11 54 + 58 45 + 56
