10 28 19 26 a) b) c) d) 24 24 24 24 15 8 4-Which of the following will be the difference between - ? 16 16 6 1 23 7 a) b) c) d) 16 16 32 16 12 28 5-Which of the following will be the sum of + ? 24 24 16 1 40 40 a) b) c) d) 48 24 24 16