adding
step 1 :write the problem down. -1+-9=
step 2:add the number together and put a mines sign in the for. -1+-9=-10
opposites
step 1: write the problem -2+5=
step 2: it is just put the bigger number first the subtract. 5--2=3
subtracting
step 1 : change the subtracting sign and change the second numbers. 8-6= 8+-6
step 2: do the math. 8+-6=2
opposites
step 1: do the same step as you did in step 1. 9--4= 9++4=
step 2 : do the problem. 9+4=13
multiplying
step 1: look at the problem and see if they are both positive or both negative. -8*-5 or 8*2
step 2 : if they are both negative the answer must be negative then answer the problem.
-8*-5=-40
opposite
step 1: the problem has 2 diff. signs the answer is negative. -9*6=
step 2: answer the problem and add a negative sign in front. -9*6=-54
dividing
step 1: look if the problem has a negative or a positive sign. -6/-2=
step 2: answer the problem like you did for multiplying -6/-2=-3
opposite
step 1: the answer will have a negative sign. -9/3=
step 2: do the problem like you did for the others. -9/3=-3http://www.dositey.com/addsub/Mystery11.htm#s
