Problem
Total for Liam's team
Add the four students' correct answers: 2 + 4 + 5 + 3 = 14.
Reading each column's circles and adding is exactly interpreting a picture graph.
2.MD.D.10Identify SubproblemsTotal for Mia's team
Liam's team is 2 more than Mia's team, so Mia's team total is 14 - 2 = 12.
'2 more' means subtract 2 to go back to the smaller total — a Grade 2 word-problem move.
2.OA.A.1Identify SubproblemsFind Jordan's count
Mia's team total minus the three known students leaves Jordan: 12 - 4 - 2 - 3 = 3.
Subtracting the known parts from the whole gives the missing part.
2.OA.A.1Identify SubproblemsSubtracting the three known Mia-team students from Mia's team total leaves the number of questions Jordan answered correctly.
Why?
A team total is every student's correct answers added together, so the four students' counts are the parts that build up that whole.
Why?
The team is exactly its four members with nobody left out and nobody counted twice, so their separate counts add back to the team total.
Why?
Taking the three counts we know back out of the total reverses the adding, so the amount still left is the one count that was added but never removed — Jordan's.
Why?
Subtraction undoes addition, so removing amounts that were added leaves exactly the amount that was not taken out.
This only needs Grade 2 graph-reading and add/subtract — find the totals, then fill the missing part!
- Total for Liam's team
- Total for Mia's team
- Find Jordan's count