6 + 2 = 8 5 + 3 = 8 4 + 4 = 8 3 + 5 = 8 2 + 6 = 8 1 + 7 = 8 0 + 8 = 8 7. Write the number fact for 6 and 4 by looking at the coloured circles. (a) 6 + 0 = 5 + = 6 + 2 = 6 + = + = + = + = (b) 4 + = 4 3 + 1 = + = + = + = 30