(b) + + + = ________
2. Draw beads to represent the following numbers on the abacus.
(a) 1064 (b) 2731 (c) 5608
Th H T O Th H T O Th H T O
(d) 9890 (e) 7342 (f) 4576
Th H T O Th H T O Th H T O
3. Write the numbers represented on the abacus.
Th H T O Th H T O Th H T O
(a) (b) (c)
4