Level 3
Tricia had $24 more than Sally at first. Sally spent 58 of her money and Tricia spent 23 of her money. Given that they had equal amount that left, how much did Sally have at first?
Level 3
At the graduation ceremony, there were 30 less boys than girls. After 35 of the boys and 58 of the girls had left the hall for recess, there was an equal number of boys and girls that remained behind. Find the number of boys who were present at the graduation ceremony at first.
Level 3
Betty and Caili had an equal number of beads at first. Betty used 12 of her beads and Caili used 16 of her beads. They used 16 beads altogether. How many beads did Caili have in the end?
