Name: ________ Date:_________

Finding the unknown value (A20)

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1

1	3	+	3	=
	4		5

2

6	+	1	1	=
7			2

3

	1	+	x	=	7
	3				12

4

x	+	3	=	27
		5		20

5

	3	+	x	=	23
	5		6		30

6

	x	+	1	=	19
	4		5		20