Name: ________ Date:_________

Finding the unknown value (A2)

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1

3	+	1	=
8		5

2

4	+	1	=
5		4

3

	1	+	x	=	3
	2				4

4

x	+	1	=	1	1
		2			3

5

	1	+	x	=	1	1
	2		5			10

6

	x	+	1	=	7
	3		4		12