8,732
edits
Changes
→Skill Levels
| 12-13 || -15 - 13 = ? || Subtracting positive and negative numbers. Minuends from -19 through 19; subtrahends from -19 through 19. Difference is negative or positive.
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| 14-15 16|| -4 + ? = 9 REVIEW OFLevels 12 -15|| Finding missing addends. Addends from -19 through 19.|- | 16 || REVIEW OF Levels 12 -15 ||
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| Example || Example || Example
