C. Draw beads on the abacus to show the given number. 75 98 T O T O D. Find the difference. 7 7 7 8 6 3 – 6 2 – 5 8 – 4 3 9 2 8 7 9 0 – 6 7 – 5 4 – 3 3 E. Write number names of the following. 81 99 78 68 105