Posted on October 5, 2017 by admin Adding 20, Practice 2 20 + 56 64 + 20 20 + 36 80 + 20 20 + 12 59 + 20 20 + 47 57 + 20 20 + 19 39 + 20
Posted on October 5, 2017 by admin Mixed Addition 86 + 24 48 + 44 33 + 40 61 + 53 35 + 63 15 + 82 52 + 25 24 + 37 67 + 50 29 + 55 79 + 38 12 + 13 32 + 60 76 + 29 58 + 56 70 + 18 28 + 85 78 + 26 72 + 36 52 + 65
