1 - two step add-sub negatives ANS
2 - three step add-sub negatives ANS
3 - four step add-sub negatives ANS
4 - five step add-sub negatives ANS
5 - six step add-sub negatives ANS
6 - 2.2 Math Links Problem Solving Integers, Decimals & Fractions ANS
7 - 2.2 Decimals - Math Links ANS