Question

The number of cookies in a small jar is shown in the number frame. The number of cookies in a medium-sized jar is 2 more than that in the small jar. The number of cookies in a big jar is 3 more than that in the small jar. Select the correct equation that will help us find the total number of cookies.

• A. $5+2+8=15$
• B. $5+2+3=10$
• C. $5+7+3=15$
• D. $5+7+8=20$

Answer 1

The correct option is D $5+7+8=20$

Solution: Option D

Say: Let us read the question, and observe the image.

Ask:
How many cookies are there in the small jar?
Ans: $5$

How many cookies are there in the medium-sized jar?
Ans: $5+2=7$

How many cookies are there in the big jar?
Ans: $5+3=8$

What will be the three addends of the addition equation?
Ans: $5,7$, and $8$

What will be the total number of cookies?
Ans: $5+7+8=20$

Hence, option D is the correct answer.

WB: If required, use the whiteboard to draw the complete number frame as shown, and write the equation.


Probing Question:
Q: If the given number frame had only 4 counters, what would be the equation?
A: If the number frame had only 4 counters, the medium-sized jar will have 4 + 2 = 6 cookies, and the big jar will have 4 + 3 = 7 cookies. So, the equation will be:
4 + 6 + 7 = 17