70 - (12 - 6)
This simplifies to 70 - 6 = 64
13 - 9 + 7
This simplifies to 4 + 7 = 11
56 - (40 - 34)
This simplifies to 56 - 6 = 50
70 - (12 - 6)
This simplifies to 70 - 6 = 64
13 - 9 + 7
This simplifies to 4 + 7 = 11
56 - (40 - 34)
This simplifies to 56 - 6 = 50