2OAst2Post

Name:

2nd Grade Operations and Algebraic Thinking- Add and subtract within 20, Standard 2, Post Test 1
Fluently add and subtract within 20 using mental strategies. By end of Grade 2, know from memory all sums of two one-digit numbers.

Completion Complete each statement.
	1.	8 + 4
	2.	3 + 6
	3.	6 + 7
	4.	4 + 5
	5.	19 - 6
	6.	11 - 4
	7.	10 - 5
	8.	13 - 7
	9.	19 - 11 = 19 - 10 - ____ = 8
	10.	17 - 8 = 17 - _____ = 10 - 1 = 9
	11.	6 + 9 = 6 + 6 + 3 = 12 + 3 = ____
	12.	20 - 12 = 20 - ____ -2 = 8