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Math worksheet with integer operations and a heart-themed puzzle.

A math worksheet titled "13 Hearts" featuring addition and subtraction problems with integers, illustrated with a cartoon sheep holding hearts, and a puzzle section asking "What has 13 hearts, but no other organs?"

A math worksheet titled "13 Hearts" featuring addition and subtraction problems with integers, illustrated with a cartoon sheep holding hearts, and a puzzle section asking "What has 13 hearts, but no other organs?"

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ID: #1064616
Show Answer Key & Explanations Step-by-step solution for: Integers: Printable Worksheets
-4 + (+12) = 8
8 - (-5) = 13
-3 - 8 = -11
7 + (-4) = 3
-20 + 12 = -8
6 - (-3) = 9
-8 + (-4) = -12
-1 - (-2) = 1
-4 + 3 = -1
-7 - (-7) = 0
6 + (-10) = -4
-1 - (-3) = 2
-16 - 1 = -17
-8 + 5 = -3
13 - (-5) = 18
-3 + (-10) = -13
-7 + (-8) = -15
-2 + 10 = 8
-11 + 5 = -6

What has 13 hearts, but no other organs?
A deck of cards (specifically, the 13 hearts in a standard deck).
Parent Tip: Review the logic above to help your child master the concept of integer puzzle worksheet.
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