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Unit 8 - Lesson 4 - Grade 2: Illustrative Mathematics

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Last updated about 1 year ago
21 questions
Note from the author:
Lesson: Decompose Even and Odd Numbers
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Cool Down: Two Equal Addends
Grade 2 Unit 8
Lesson 4: Decompose Even and Odd Numbers
CC BY 2021 Illustrative Mathematics
Grade 2 Unit 8
Lesson 4: Decompose Even and Odd Numbers
CC BY 2021 Illustrative Mathematics

Number Talk: Equal Addends (Warm Up)

Question 1
1.

Find the value of each expression mentally.

Question 2
2.

Find the value of each expression mentally.

Question 3
3.

Find the value of each expression mentally.

Question 4
4.

Find the value of each expression mentally.

Share in Different Ways

Kiran baked 12 cookies. He wants to put them in two gift bags. Show a few different ways he can share the cookies.
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Lin baked 14 cookies. She wants to put them in two gift bags. Show a few different ways she can share
the cookies.
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Noah baked 15 cookies. He wants to put them in two gift bags. Show a few different ways he can share
the cookies.
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Represent Numbers with Two Addends

Question 17
17.

  1. Pick a number between 0 and 20.
  2. Decide with your partner whether the number is even or odd.
  3. Complete the equation to show your number as the sum of two equal addends. If you cannot use two equal addends, use two addends that are as close as possible.

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Question 19
19.
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Question 21
21.
Question 5
5.
Can both bags have the same amount of cookies?

12 = _______+_______
Question 6
6.
Can both bags have an even number of cookies?

12 = _______+_______
Question 7
7.
Can both bags have an odd number of cookies?

12 = _______+_______
Question 8
8.
Can one bag have an even number of cookies and the other have an odd number of cookies?

12 = _______+_______
Question 9
9.
Can both bags have the same amount of cookies?

14 = _______+_______
Question 10
10.
Can both bags have an even number of cookies?

14 = _______+_______
Question 11
11.
Can both bags have an odd number of cookies?

14 = _______+_______
Question 12
12.
Can one bag have an even number of cookies and the other have an odd number of cookies?

14 = _______+_______
Question 13
13.
Can both bags have the same amount of cookies?

15 = _______+_______
Question 14
14.
Can both bags have an even number of cookies?

15 = _______+_______
Question 15
15.
Can both bags have an odd number of cookies?

1 = _______+_______
Question 16
16.
Can one bag have an even number of cookies and the other have an odd number of cookies?

15 = _______+_______
Question 18
18.

Write an equation with two equal addends for each image if you can.

_______ = _______ + _______
Question 20
20.

Write an equation with two equal addends for each image if you can.

_______ = _______ + _______
Decide whether the number of dots is even or odd.
even
odd
Decide whether the number of dots is even or odd.
even
odd