ALGEBRA - Adding Signed Numbers Practice adding signed numbers. Tools A B 8 + (-5) 3 -8 + 5 -3 +13 + 12 25 -13 + (-12) -25 +14 + (-80) -66 -2.3 + (-3) -5.3 4.5 + (-10) -5.5 -8 + (-4) -12 5 + (-1) 4 5 + (-7) -2 -8 + 4 -4 25 + (-35) -10 18 + 2.5 20.5 -18 + (-2.5) -20.5 -32.6 + (-50) -82.6 -5 + (-17) -22 -6 + 14 8 35 + (-35) 0 -2 + 24 22 -10 + (-2) + 4 -8