Question 3
Activity 3: Form a pair. Collect 12 countable objects or counters (it can be coins, seeds, or pebbles). Now, share them between the two of you in different ways.

Sharing a total number of objects means dividing them into parts for each person.
Step 1 — Understanding the Activity
We need to work in pairs. We will collect 12 items. Then, we will share these items between us. We must find different ways to do this.

Step 2 — Identifying the Total Objects
The total number of objects we have to share is given. Let be the total number of objects.
We will share these 12 objects between two people.
Step 3 — Exploring Different Ways to Share
Let us say Person 1 gets objects. Then Person 2 will get the remaining objects. The number of objects Person 2 gets is . We can list all possible whole number values for . The number of objects cannot be negative. So, must be from 0 to 12. We can find 13 different ways to share the objects.
Step 4 — Observing the Diagrams
The diagrams show some of these sharing methods. The first diagram shows 4 objects and 8 objects. The second diagram shows 6 objects and 6 objects. The third diagram shows 2 objects and 10 objects. These are three examples of sharing 12 objects.
Answer
(i) Person 1 gets 0 objects, Person 2 gets 12 objects. (ii) Person 1 gets 1 object, Person 2 gets 11 objects. (iii) Person 1 gets 2 objects, Person 2 gets 10 objects. (iv) Person 1 gets 3 objects, Person 2 gets 9 objects. (v) Person 1 gets 4 objects, Person 2 gets 8 objects. (vi) Person 1 gets 5 objects, Person 2 gets 7 objects. (vii) Person 1 gets 6 objects, Person 2 gets 6 objects. (viii) Person 1 gets 7 objects, Person 2 gets 5 objects. (ix) Person 1 gets 8 objects, Person 2 gets 4 objects. (x) Person 1 gets 9 objects, Person 2 gets 3 objects. (xi) Person 1 gets 10 objects, Person 2 gets 2 objects. (xii) Person 1 gets 11 objects, Person 2 gets 1 object. (xiii) Person 1 gets 12 objects, Person 2 gets 0 objects.
More questions in A
Take your favourite dish. Find out all the ingredients and their respective quantities needed to make the dish for your family. Suppose you are celebrating a festival and you want to invite 15 guests. Find out the quantities of the ingredients required to cook the same dish for them.
Go to the market and collect the prices of different sizes of shampoo containers of the same shampoo and create a table like the one given below. See if the volume of shampoo is proportional to the price.
Activity 3: Form a pair. Collect 12 countable objects or counters (it can be coins, seeds, or pebbles). Now, share them between the two of you in different ways.
Solve the following Binairo puzzles: