Putting Groups Together

Join two groups and write what happened.

10 problems · about 11 minutes · 1.OA.A.1, 1.OA.C.5

NameDate

Figure — use these to answer the problems

Change either group. The total works itself out.

First group4

Second group3

Figure 1

From earlier lessons. Loosen up before the new work.

7 problems

From “How Many Do You See?”
How many dots?
Answer
From “One More, One Less”
What is one more than 4?
Answer
From “Partners to Ten”
How many more would make ten?
Counters4
Answer
From “All the Ways to Make 8 and 9”
5 and what make 8?
Answer
From “All the Ways to Make 6 and 7”
4 and what make 6?
Answer
From “Number Bonds”
The whole is 6. One part is 2. What is the other part?
Answer
From “Five and Some More”
A full five and 3 more. How many is that?
Answer

Straightforward practice. Get the method working first.

2 problems

Mixed problems. Work out what kind of question it is before you start.

1 problem