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Unit 4 Lesson 15: Riddles

By Formative Library
Last updated 3 months ago
14 Questions
Note from the author:
Grade 2 Unit 4 Lesson 15 CC BY 2021 Illustrative Mathematics®
Grade 2 Unit 4 Lesson 15 CC BY 2021 Illustrative Mathematics®

What do you notice? What do you wonder?


What do you notice? What do you wonder?



Solve Kiran’s age riddles. Show your thinking. Use a number line if it helps.

I’m 7. My sister is 5 years older than I am. How old is she? __________ years old

If you add 27 years to my sister’s age, you get my mom’s age. How old is my mom? __________ years old

My brother is 24 years younger than my mom. How old is my brother? __________ years old

My grandma is 53 years older than my brother. How old is my grandma? __________ years old

My uncle is 21 years younger than my grandma. How old is my uncle? __________ years old

My uncle is 33 years older than my cousin. How old is my cousin? __________ years old

There is a 50 year difference between my grandpa’s age and my cousin’s age. How old is my grandpa? __________ years old

Complete the table by writing down 4 people you know with different ages.

Come up with 3 mathematical questions to ask your partner.

Question 1:

Question 2:

Question 3:

Solve your partner's riddles. Show your thinking using a number line or equation.