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15 cards from this deck
Positive & negative whole numbers including zero
ZZZ (from German 'Zahlen' meaning numbers)
Add values and keep the common sign
Subtract, keep sign of larger absolute value
(+)(+)(+) - like signs give positive
(−)(-)(−) - unlike signs give negative
Expanding
Multiply outside term by every term inside brackets
Brackets, Indices, Multiply, Divide, Add, Subtract
Brackets
Indices (or powers)
202020 (like signs = positive)
−18-18−18 (unlike signs = negative)
555 (double negative equals positive)
−10-10−10 (same sign: add values, keep sign)
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