Sally and her mom were at home. Her grandma came around to visit, then her dad and brother came home together.
Which number sentence matches the number of people in the house?
$2-1+2$2−1+2
$2+1-2$2+1−2
$2+1+2$2+1+2
$1+1+2$1+1+2
How many people are in the house altogether?
The following problem was being solved by Marge and Yuri.
$2$2 bags with $3$3 apples in each bag were stacked on the supermarket shelf. There were $9$9 more loose apples. How many apples are there altogether?
The following problem was being solved by Bob and Valerie.
$5$5 boxes with $10$10 donuts in each box were delivered to work in the morning. $7$7 donuts were eaten over the course of the day. How many donuts are left altogether?
There are $10$10 horse stables that each house $5$5 horses.
Over the last month, $3$3 new horses were brought in.