ALTHEAREINE1209IN ALTHEAREINE1209IN Math Answered Add the following... 1.(-23) + (-6) 2.(+4) + (+8) 3.(-15) + (+9) 4.(+63) + (-17) Subtract the following... 5.(-4) - (+7) 6.(-5) - (-11) 7.(-4) - (+9) 8.(+15) - (+8) Thank you