Question

There are \(15\) blue and red balloons. A few of them popped, so now only \(9\) are left. How many balloons popped?
\(15 – 9 =\) __, \(9 +\) __ \(= 15\)

Answer 1

Say: Let us begin by finding the number of balloons that popped.

Ask:
\(\bullet\) How many balloons are there?
Ans: \(15\)
\(\bullet\) How many are left after a few of them popped?
Ans: \(9\)
\(\bullet\) How do we find the difference?
Ans: By subtracting the smaller number, i.e., \(9\) from the bigger number, i.e., \(15.\)
\(\bullet\) What equation will be framed?
Ans: \(15 – 9 = 6\)
\(\bullet\) So, how many balloons popped?
Ans: \(6\)

Say: Now let's find the related addition equation.

Ask:
\(\bullet\) How do you find the total?
Ans: By adding two smaller numbers to get a bigger number.
\(\bullet\) Using the same three numbers \(6, 9,\) and \(15,\) \(\bullet\) what addition equation can be framed?
Ans: \(9 + 6 = 15\) or \(6 + 9 = 15\)

Hence, Option D is correct.

WB: If required, use the whiteboard to represent the bigger and smaller number as shown and write the related addition and subtraction equations.



Probing Question:
Q. So, what are the related addition and subtraction equations framed?
A. Subtraction equation: \(15 – 9 = 6\)
Addition equation: \(9 + 6 = 15, 6 + 9 = 15\)