John Tvedtnes notes that the law of Moses was comprised of three divisions, the commandments (sometimes called "law" or "testimonies"), the statutes (sometimes called "ordinances"), and the judgments. (see Deuteronomy 4:1-2, 13-14; 5:28; 6:20; 26:17; 28:45; 2 Kings 17:34, 37; 2 Chronicles 19:10; 29:19; 33:8; 34:31; Nehemiah 9:13-14; 10:30; Jeremiah 32:11. There are many more passages in which just two of the three divisions are mentioned together)
Avraham Gileadi first noted that these same three divisions of the law are listed in the Book of Mormon, where the word "performances" sometimes replaces "judgments." (see 1 Nephi 17;22; 2 Nephi 5:10; 25:25, 30; Mosiah 6:6; Alma 8:17; 25:14-15; 31:9-10; 58:40; Helaman 3:20; 15:5; 4 Nephi 1:12)
From some of the Book of Mormon passages (Alma 30:3; 2 Nephi 25:24-25, 30; 4 Nephi 1:12), we learn that it was the statutes and judgments (or ordinances and performances) that would be done away in Christ, while the commandments would remain as part of the higher law that Christ revealed during his ministry. Thus, Christ seems to have suggested that only the lesser portion of the law was fulfilled when he said, "Behold, ye have the commandments before you, and the law is fulfilled" (3 Nephi 12:19).
Thus, that portion of the law of Moses that was also part of the higher law rejected by the Israelites (including the ten commandments) was not abolished in Christ, while lesser elements of the law, such as animal sacrifice, were done away (3 Nephi 9:19). Christ explained to the Nephites, "Therefore those things which were of old time, which were under the law, in me are all fulfilled. Old things are done away, and all things have become new" (3 Nephi 12:46). [John A. Tvedtnes, "Performances and Ordinances of the Law," in The Most Correct Book, p. 276]