6.
10 chairs are in room one and 12 in room two. The principal asked Sammy how many chairs are in both rooms, but he does not know. Help Sammy to find out.
A
10 + 12 = n, therefore n = 22
B
10 - 12 = n, therefore n = 2
C
12- 10 = n, therefore n = 2
7.
A little boy was given 15 slices of pizza. He ate 9 of those slices and covered the box without counting the remaining slices. Solve and tell him how many slices are left.
