48 - 2 = 46 35 + 20 = 55 47 - 23 = 24 87 + 3 = 90 10 80 – 7 = 73 70 10 +3 70 – 43 = 27 30 40 3 36 + 8 = 44 14 (10+4) 35 – 7 = 28 30 5 2 46 + 37 = 83 70 + 13
48 - 2 = 46 35 + 20 = 55 47 - 23 = 24 87 + 3 = 90 10 80 – 7 = 73 70 10 +3 70 – 43 = 27 30 40 3 36 + 8 = 44 14 (10+4) 35 – 7 = 28 30 5 2 46 + 37 = 83 70 + 13