Joining Groups to Add Worksheets

Joining two groups together is where addition begins. Long before a child can read a number sentence, they can look at three apples beside two apples and see that putting the groups together makes five. These Joining Groups to Add Worksheets build that first, picture-based understanding of addition: count one group, count the other group, then join them and count how many there are in all. Working with real objects a child can point to and touch keeps the focus on the meaning of adding rather than on memorizing facts, which is exactly what the Kindergarten standards ask for when students represent addition with objects, drawings, and pictures.

This Kindergarten addition worksheet gives students four picture problems, each with two groups of everyday objects — apples, flowers, mittens, and cupcakes. A large plus sign sits between the two groups so children can see the joining happening. Underneath, three answer boxes wait for the numbers: the count of the first group, the count of the second group, and the total. Children can point and count aloud, touch each picture as they say the number, and then write the digits in the boxes. Every sum stays within ten, so the totals are small enough to check by counting all of the pictures again. Use it during a small-group math lesson, at a math center, as morning work, or as a quick review before moving on to number sentences without pictures.

What’s Included

• 1 print-ready PDF worksheet
• Answer key
• 4 picture-group addition problems with sums within 10

There are three reasons these Joining Groups to Add Worksheets help children learn addition. First, the pictures make the concept concrete: a child who cannot yet read a number sentence can still solve every problem by counting what they see. Second, writing all three numbers — both parts and the whole — builds the part-part-whole thinking that later supports fact families, missing addends, and subtraction. Third, the four problems use four different objects, so children practice counting carefully instead of falling into a pattern and guessing. The included answer key makes checking fast, whether a teacher is reviewing a whole class set or a parent is working through one page at the kitchen table.

To stretch the skill further, have children act the problems out with real objects: two piles of buttons, crayons, or snack crackers pushed together while everyone counts the total. Ask them to say the whole sentence out loud — “three and two is five in all” — before they write anything, then have them draw their own picture problem for a partner to solve. Rolling a die twice and drawing that many circles in each group turns the same skill into a game. Ten-frames, counting bears, and a walk around the room hunting for groups of objects to add all reinforce the same idea in a different way.

Related Resources

• Counting On to Add Worksheet
• Single Digit Addition Problems Worksheet
• Addition True or False Worksheet
• Adding 1 Song (Have Fun Teaching)