1) 5 - 3 a) 2 b) 3 c) 8 2) 8 - 2 a) 6 b) 4 c) 10 3) 10 - 1 a) 11 b) 8 c) 9 4) 12 - 3 a) 9 b) 2 c) 15 5) 15 - 6 a) 8 b) 9 c) 20 6) 20 - 1 a) 21 b) 18 c) 19 7) I have 6 dogs. I lost 5 dogs. How many dogs are left? a) 1 b) 11 c) 4 8) Tim has 17 pens. He gave 6 pens to Tom. How many pens does Tim have left? a) 14 pens b) 11 pens c) 11 Tims

Triangle subtraction

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