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?
$1+1+2$1+1+2
$2+1+2$2+1+2
$2-1+2$2−1+2
$2+1-2$2+1−2
How many people are in the house altogether?
$27+5-5$27+5−5
The following problem was being solved by Lachlan and Pauline.
$2$2 bags with $10$10 avocados in each bag were stacked on the supermarket shelf. There were $6$6 more loose avocados. How many avocados are there altogether?
The following problem was being solved by Charlie and Jenny.
$2$2 boxes with $10$10 donuts in each box were delivered to work in the morning. $3$3 donuts were eaten over the course of the day. How many donuts are left altogether?