Practice problemGrade 1 · 1.OA.B.3
True or false
Individual task
Practice problem
Practice problemGrade 1 · 1.OA.B.3
Write two facts
Individual task
Practice problemGrade 1 · 1.OA.B.3
Explain equal sums
Individual task
Practice problemGrade 1 · 1.OA.B.3
Complete the bond
Individual task
Practice problemGrade 1 · 1.OA.B.3
Make a fact family
Individual task
Practice problemGrade 1 · 1.OA.B.3
Check a claim
Individual task
Practice problemGrade 1 · 1.OA.B.3
Part or whole
Individual task
Practice problemGrade 1 · 1.OA.B.3
Build a related story
Individual task
Practice problemGrade 1 · 1.OA.D.7
Balance the equation
Individual task
Practice problemGrade 1 · 1.OA.D.7
True equation
Individual task
Practice problemGrade 1 · 1.OA.D.7
Unknown addend
Individual task
Practice problemGrade 1 · 1.OA.D.7
Unknown start
Individual task
Practice problemGrade 1 · 1.OA.D.7
Unknown change
Individual task
Practice problemGrade 1 · 1.OA.D.7
Compare both sides
Individual task
Practice problemGrade 1 · 1.OA.D.7
Fix the sign
Individual task
Practice problemGrade 1 · 1.OA.D.7
Explain the equal sign
Individual task
Practice problemGrade 1 · 1.OA.D.7
Find two answers
Individual task
Practice problemGrade 1 · 1.OA.D.7
Use a model
Individual task
Practice problemGrade 1 · 1.OA.D.7
Check a student
Individual task
Practice problemGrade 1 · 1.OA.D.7
Write your own
Individual task
Practice problemGrade 1 · 1.OA.A.1
Apples join the plate
Individual task
Practice problemGrade 1 · 1.OA.A.1
Join two plates
Individual task